Captive Volcano

When you planechase to Captive Volcano, or at
the beginning of your upkeep, choose one that
hasn't been chosen --
-Each opponent loses 2 life and you gain 2 life.
-Deal 4 damage to target creature and lose 2 life.
-All creatures get +2/-2 until end of turn.
-Discard 2 cards.
-Deal 5 damage to all creatures you control.
-Lose 25 life and planeswalk.
Chaos: Target opponent chooses one.