Apocalypse

 is an active ability, which means it will only activate once the creature has a full bloodlust counter.  For a list of all Cards with this ability, click here! 

Variations
can appear as certain activation, or with a chance to activate. It can activate during the card's turn, or on Leaving play.

Strategy
This ability destroys ALL creatures in play, including your own, also negating Tenacity! Use with caution and only as last resort (or to trigger awesome On Leave Play abilities)).