How? Warhammer has few weapons that can harm TARDIS's.

the tardis is not invincible; in fact in Dr Who in the actual show it is nearly destroyed by several dozen close calls

The Doctors TARDIS is a museum piece. So not a good standard to use. Although it can survive Quasars. Sniffing, the Doctor tried to tell if there was any burning insulation. That was usually the first sign that a ship's shields were failing If only they'd travelled in the TARDIS. He wouldn't have worried then. Type 40s were rated for environments up to and including quasars. If only he knew where the TARDIS was. - Original Sin

yea but you are only thinking one dimensionally the tardis is a trans dimensional device; lets look at trans dimensional stuff from Warhammer 40k; the DARK ELDAR race the CHAOS GODS the Dark Eldar Gods the Eldar Prysm technology the Necron Dark Gods the Tyranid Hive Race the Chaos Space Marines and all their tech anything that deals with "The Warp" there's a ton of stuff in 40k that could be quite bad for the tardis. in the dimension of the dr who universe and that timeline(referring to time as a dimension) yes the tardis is resilient to quite a bit of forces that are single dimensional, it is very vulnerable to multi dimensional factors however and there are at least 6 occasions I remember in all 50+ seasons that literally show that

Prove that can harm it.

well for starters watch the semi recent episodes where the tardis actually explodes, then the episodes where it is actually dying [spoiler]yes the tardis is actually a living thing and alive; which also means it can and will eventually die[/spoiler]

I've seen that. But as it turns out it was fine and restored itself. Also people like the Eldar are not multidimensional.

the dark eldar are eldar who went into the warp and were lost to it, they come from the warp; the warp is a trans dimensional mode of travel which is used to travel through the Warhammer 40k universe; beings such as the eldar gods and the dark eldar have actually been outside the main Warhammer universe and the chaos gods and tyranids originate from a different universe entirely the only reason the tardis got fixed from exploding [spoiler]river killed the doctor[/spoiler] the only reason the tardis did not die in the episodes it was dying in; [spoiler]the doctor used one of his regenerations to heal it and in another one; the red head lady dies to live as part of the tardis[/spoiler] and those are just two of the incidents where the tardis was saved from destruction where with out intervention it would have been destroyed

That doesn't mean they have more then 4 dimensions. The Warp can have any number of dimensions. Yet the TARDIS has withstood far worse on a regular basis. So those are low ends. But still TARDIS,s will crush anything in their way. The dreadnoughts had to be that huge: along their central axis, hundreds of miniature Eyes of Harmony generated the titanic forces that the dreadnoughts wielded. Time destructors - each one capable of taking out an entire star system. - Quantum Archangel The Doctor waved his hand around the warehouse. 'The moment the door to the warehouse was closed, the Master's TARDIS generated a jigsaw of temporal boundaries. Within the regions created by those boundaries, the flow of time differs from the norm. In some it is frozen. In others, it is running hundreds, thousands of times faster. And in others still it is running backwards. You, Stuart, had the good fortune to stumble into one of the regions in which it was running backwards, as well as the good fortune for me to pull you out of there before you unaged back to an embryo. -Quantum Archangel the temporal grace that protected the Time Lord fleet extended what were nanoseconds for the Enemy's battle computers into minutes for the Time Lords -Quantum Archangel

universal dimensions; 2 dimensional planes 3 dimensional space 4th is time 5th is subspace anything beyond that that can traverse any of those dimensions as well is called trans dimensional; the warp is [b][i][u]NOT[/u][/i][/b] one of those dimensions: it is a trans dimensional conduit between universes that can also be used to travel point A to point B in the Warhammer universe; the only race in the Warhammer universe originating from the Warhammer universe that can travel the warp with out succumbing to the chaos universe is [b][i][u]THE ELDAR[/u][/i][/b] The Tardis has never had to deal with chaos god beings originating from the chaos universe it has also never had to deal with the hive mind of the tyranids who inhabit the chaos universe as devouring hordes of aliens only compare able in scope to the hive from destiny and even the hive in destiny are minute vs the tyranids; the tyranids travel through the Warhammer 40k universe in living sentient space cruizers the size of our earth's moon.

Proof they are immune to Chaos corruption? Simply being from the Warp doesn't mean they can do anything to the TARDIS. Tyranids are nothing special, just mildly adaptive bug hords that have been beaten back my modern IOM several times.

http://warhammer40k.wikia.com/wiki/Immaterium the warp---^ http://warhammer40k.wikia.com/wiki/Eldar the eldar---^ http://warhammer40k.wikia.com/wiki/Dark_Eldar the dark eldar---^ http://warhammer40k.wikia.com/wiki/Chaos chaos---^ http://warhammer40k.wikia.com/wiki/Chaos_Gods chaos gods---^ http://warhammer40k.wikia.com/wiki/Eldar_Titans eldar titans(aka gods)---^ http://warhammer40k.wikia.com/wiki/Chaos_Space_Marine chaos space marines---^ times the tardis was destroyed; Destructions Over its long history with the Doctor, the TARDIS came to several ends where it was actually destroyed, either rebuilding itself later or stopping the damage from occuring in the first place through temporal actions. These "deaths" included; Breaking apart while exposed to the forces outside the universe (TV: The Mind Robber) The internal dimensions collapsing due to missing components (AUDIO: Time Reef) Burning in time spillage from a vortex rupture (PROSE: The Crystal Bucephalus); this assault was averted before complete destruction but still required the ship to rebuild itself Being broken apart by the gravity manipulations of Tractators, requiring the Gravis to pull it back together (TV: Frontios) Shattering across the infinity of time for a second due to a temporal explosion (AUDIO: Paper Cuts) Reforming into a SARDIT after colliding with the Time Scaphe and being invaded by the Process (PROSE: Cat's Cradle: Time's Crucible) Being time rammed by an alternative TARDIS on the Silurian Earth (PROSE: Blood Heat), only escaping due to a Fortean Flicker displacing it just before destruction (PROSE: Happy Endings). Being erased from existence by a conceptual bomb, until the Doctors managed to avert the circumstances that led to the bomb being deployed against them in the first place (AUDIO: The Light at the End) Being torn apart after being caught in a dimensional rift leading between Earth and Avalon (PROSE: The Shadows of Avalon); it was only able to restore itself by latching on to I.M. Foreman's universe-in-a-bottle, and even then the Faction Paradox biodata virus that it was attempting to contain caused it to mutate into the Edifice until the Doctor drained its power (PROSE: The Ancestor Cell) Exploding and causing the Time Field after being taken over by the Silence. (TV: The Pandorica Opens /The Big Bang, The Time of the Doctor) Having the engines explode upon collision with the salvage ship whilst the defences were down. (TV: Journey to the Centre of the TARDIS) However the TARDIS froze the explosion or "wrapped her hands around the force" to give the Doctor time to resolve the issue. In a parallel world, Rose Tyler believed that the TARDIS was dying due to the Doctor's death. Indeed, the TARDIS seemed to be in bad shape though it continued to try to help. (TV: Turn Left) In the alternate timeline where the Doctor died on Trenzalore, the TARDIS itself was dying as well, presumably due to the Doctor's death and had grown to a giant size due to a "size leak" and acted as his tomb. It's console room was shown to be overgrown as well. (TV: The Name of the Doctor) The Supreme Dalek ordered the destruction of the TARDIS, but it survived using its Hostile Action Dispersal System. (TV: The Magician's Apprentice / The Witch's Familiar)

This is getting too complicated so I'm out.

I'm not reading all that. Can you tell me where the important bits are. Forces outside of the universe is not the same as the warp, which is a universe. Components that nobody can take while outside. Time spillage is something nobody in Warhammer has replicated. It must have been extraordinarily powerful gravity. As the TARDIS can withstand black holes. CHARLEY: This is absolutely typical. Set course for a Bandril spaceship or the heart of a black hole, and the good old Tardis won't let you down, but tap in the coordinates of a sun-drenched beach or a half-decent party -Time Works It had flown through black holes, it had crashed into bus stops, but right now it was idling. -City of Death Temporal explosion are not something Warhammer has. They don't have time scaphe. They can't time ram. They don't have conceptual bombs. Can they rip holes into dimensions? What caused it to explode? It's defenses were down. And it was still able to stop the event long enough for it to be resolved. They have to kill the Time Lords inside to do that. Same as above. A low end feat.

the tardis is not invincible; it was destroyed 11 times and by different methods each time. temporal mechanics in Warhammer 40k; the Chaos realm of the immaterium/warp/Empyrean/Aether/Sea of souls/warpspace is out side of time; a dimension where time does not exist (or at least does not exist linearly) the warp is an alternate dimension of purely psychic energy that echoes and underlies the familiar four dimensions of the material universe. It is the source of all psychic powers and known instances of so-called "sorcery" or "magic" as well as the home dimension of the Chaos Gods and their myriad daemonic servants. The Immaterium is also rumoured by many cultures, human and xenos alike, to be the final resting place of the spirits of the dead, and therefore can be considered the "Underworld" of the Warhammer 40,000 universe. in other words; time does not exist there and it is the wellspring of demonic and psychic energy; which btw the Tardis IS vulnerable to within the Dr Who shows itself(the 5th/6th dimensional energies of "magic"/"psychic" power.)

Also there are beings known Chronovores who can eat time. ‘Not necessarily. Their presence and force of will can alter the flow of time – they consume time itself. As termites consume the wood they live in, so the Chronovores exist in the vortex, and feed upon time itself.’ Then here we see a War TARDIS destroying them. Without hesitating, his hand descended on to the black trigger and squeezed. For the briefest of briefest moments the outer plasmic shell of his WarTARDIS became a wormhole, linking a small point in orbit around twenty-first century Earth to another point, in another time and another place. The Eye of Harmony. As the Masters WarTARDIS felt the first warmth of the Eye's majesty, it's topology twisted once more, forming a five-dimensional lense that focused the unstoppable might that instantly flooded through the wormhole. An actinic spear arced out across both the space-time continuum and the time vortex - and hit the precise centre of the Chronovores' vicious flock. The reaction was immediate. A few Chronovores effectively evaporated under the onslaught, their polydimensional matrices shattering under the impact; many more were caught in the edges of the blast and left injured or dying, their once perfect bodies deformed and broken. -Quantum Archangel

im pretty darn sure 1 eldar epic warlock titan can destroy the tardis; the eldar have several thousand of them btw

Yet we have quotes of them being able to fight time eaters and survive quasars. So no they can't destroy TARDISs.

still only thinking one dimension at a time psychic energy in Warhammer permeates several layers of dimensions and has an effect on all of them; the warpspace is also basically primarily psych energy from the entire universe; it has no constraints of time to bind it and it can be endlessly channeled through chaos gods or powerful psykers seers or warlocks the tardis has a very specific power core with limitations a chaos god or psyker or seer or warlock can funnel potentially endless psychic energy from the warpspace which is powered by all psychic energy through out the entire universe and all of time and all possible time lines

This is the Eye of Harmony. It can be used rewrite reality. https://i.imgur.com/WbeSZTL.jpg “They could see the effect the singularity was having on space and time. It was like a hammer smashing against thick glass, or a block of ice. Cracks developing, growing together into a network of lines. The universe was a block of stone before, now it was being chipped away to reveal the sculpture that had always lain within it. Spacetime is shattering, the laws of physics have been repealed. Rassilon was panicking. Rassilon would not let it happen. Omega could feel Rassilon’s mind once again. He lifted his head, strained to hear the voice far above him. But the mind wasn’t speaking to him, it was speaking to the black hole, encompassing it, manipulating it. By sheer force of will, Rassilon passed a new law of physics. He struck up equilibrium, established beautifully elaborate equations. A surface appeared upon the darkness, a surface from which the escape velocity was exactly the speed of light. The naked singularity was covered, the hole in the universe was sealed over, and outside the storm was subsiding. The universe was safe. Nothing can ever be allowed to escape from the darkness.” The Time Lords can erase the Warhammer factions from reality.

im aware of that: the dark eldar can do the same thing in regards to time manipulation also the time lords lost to the daleks they were all only preserved in a painting at the last moment before their destruction by 13 er 14 versions of the doctor and all their tardises the time lords and all of galifrey were still defeated and only exist preserved in a painting for all eternity frozen in time and space

still only thinking one dimension at a time psychic energy in Warhammer permeates several layers of dimensions and has an effect on all of them; the warpspace is also basically primarily psych energy from the entire universe; it has no constraints of time to bind it and it can be endlessly channeled through chaos gods or powerful psykers seers or warlocks the tardis has a very specific power core with limitations a chaos god or psyker or seer or warlock can funnel potentially endless psychic energy from the warpspace which is powered by all psychic energy through out the entire universe and all of time and all possible time lines ------- They can't use their true power outside of the Warp so they are irrelevant. Which is beyond almost everything in Warhammer. NONONONONONONONO! They are not infinitely powerful. Nor have any of them shown this power. Stow that crap.

the warlocks an seeers and psykers use psychic and magic power of the warpspace channeled through them to unleash attacks on the battlefield they have unlimited ammo their attacks are not stopped by any conventional armor; only psychic energy fields of the same resonance and the warpspace is the psychic dimensional manifestation of all psychic energy in the universe for all time across every time line so yea thats bought as damn close to unlimited power as anything gets.