Cthulhu, the Great Dreamer

You can't cast this spell unless you control an enchantment named "Celestial Alignment"
Flying, Islandwalk
If an effect an opponent controls would destroy
this creature, it gains indestructible until end of
turn, and you may destroy target permanent.
Whenever Cthulhu, the Great Dreamer deals
combat damage to a player, that player discards
their hand and draws that many cards minus one.