All father,ODIN

When odin enters the battlefield all creatures you don't control get destroyed all creatures destroyed this way create a 4/4 viking token for every creature destroyed when odin leaves the battlefield all opponents lose 10 life you gain life equal to total amount lost
Everytime odin enters the battlefield it cost 2 less to cast him
Abilities, indestructible, Deathtouch, flying, untargetable