I personally can't really see many weapons if any that would actually become "broken" because of it, especially when we consider not every exotic has a catalyst (Bungie, you're still at least 2 weapons behind, technically more if we count delays/ extended seasons and episodes lasting months extra), a stat boost from one, some don't even fully benefit from the catalyst like Touch of Malice (what good is Rapid Hit with a bottomless magazine and it doesn't affect activation of the alt fire?), and others have stupidly low stats in comparison to their archetypes if not also the weapon type as a whole such as Sunshot with it have 60 AA out of the 80-90 ALL lightweight hand cannons had. Let's be real here, sticking to just enhanced perks for the sake of it. If +3 range and +2 stability would break Ace of Spades (enhanced barrel, mag, and grip), a weapon which has: * been nerfed indirectly and lost the 1 crit 2 body with Memento Mori in pvp due to the resilience changes * it has the lowest AA of all 140s * And overall worse stats compared to probably any other hand cannon you'll see in pvp except in range even without perks like like Perpetual Motion or Elemental Capacitor If that's all it would take to break any exotic, that exotic was already broken to begin with. I really don't see even the full T5 benefits of +5 to all stats breaking anything at this point what with all the power creep on legendaries either stat-wise or in plain killing potential. Worst case scenario, no one even notices the changes. Best case scenario, it brings some exotics up a little closer to the legendary alternatives or reverts stat nerfs that are no longer justified in any capacity such as Thorn now that it too, due to the resilience changes, has lost the base 2 crit 1 body kill and the 2 tap while buffed (which was a big selling point for it's return and rework) even with a maxed weapon stat.