Mega Fortress Whale

Umi Protection- while "Umi" is on your battlefield you all blue creature you control have menace (A creature with menace can’t be blocked except by two or more creatures)

{2}{u}:During a opponent's combat phase; you cant target 1 creature they control and destroy it

When this creature leaves the field by combat or destruction: you may search for a warrior monster from your library or GY, place onto the battlefield tapped, then shuffle your library