Romur, World Ender

Flying, Indestructible, Hexproof, Trample,
Infect, Double Strike, Annihilator 2
When Romur, World Ender enters the battlefield,
destroy all creatures of a chosen creature type.
Creature spells of the chosen type cannot be cast
while Romur, World Ender is on the battlefield.
At the beginning of your upkeep, if Romur,
World Ender is in your graveyard or exile,
return it to your hand.