Leviathan, Citykiller

Indestructible, Menace, Deathtouch, Trample
If Leviathan, Citykiller deals damage to a player,
deal 5 additional damage to that player.
At the end of your turn, put a flood token on
target land and destroy all permanents with
two or more flood counters.
{u}{4}: Deal 3 damage to all opponents creatures
or 5 damage to all creatures.