Levyatan

Trample. Islandwalk.
When Levyatan becomes tapped you may untap up to 2 target Islands you control.
{3}{u}, target land opponent controls becomes an Island in addition to it's other types until end of turn.
The Levyatan is one of the deeps most powerful predators, she hunts the mighty megalodon and not even krakens are safe from her massive jaws.