Maelstrom Leviathan

Islandwalk
Reverberate 2 - {3}{u}
When Maelstrom Leviathan enters the battlefield, choose an opponent. As long as you control a
creature named Maelstrom Leviathan, that
opponent's lands are Islands.
"Phrensied convulsion - heaving, boiling, hissing -
gyrating in gigantic and innumerable vortices."