Leviathan, the Second

Indestructible, Trample, Vanishing 3
Project {w/u}{w/u}
Whenever Leviathan attacks, put a flood
counter on target land. Leviathan gets +1/+1
for each flood counter on lands your
opponent's control.
When Leviathan would be sacrificed, return it
to the battlefield tapped and transformed under
its owner's control.