Aegir, Tidecaller Leviathan

Islandwalk, Trample

Tidecaller's Command -When Aegir, Tidecaller Leviathan enters the battlefield, return up to three
target nonland permanents to their owners' hands.

Ocean's Sovereignty -Other Whale and Leviathan creatures you control have trample.

"Aegir's roar can summon the tides and reshape the coastline."