All great things for PvE...but not necessarily for the Crucible. AoC enables you to use grenades more often but Voidwalker grenades lack potency in PvP. Cataclysm is a better Nova Bomb than Vortex but it has problems: - Sometimes detonating Cataclysm in the air can destroy the seekers it produces - Throw it at an enemy and....watch it....fly past them and not track anyone! - Yes it moves fast at first but after that? Slowva Bomb Now, that being said, here's why you should give Attunement of Chaos a try in the Crucible: Grenades may suck but they still do damage. Getting them more often can still help out as long as you throw it before you engage. Players also remember D1, so they see one of those Axiom seekers and ran away screaming lol. Now as for the Cataclysm Nova Bomb it has a HUGE blast radius. Much bigger than Vortex. In enclosed areas, or when a player doesn't notice it, the seekers are sneaky little OHK's. Remember that Competitive has no radar? Yeah often they literally won't see it coming. Oh and there's Bloom: stand too close to a teammate who goes down from a Voidwalker's grenade or a Cataclysm seeker and they'll be in for one hell of a surprise lol.