Hullwrecker

Hexproof, Trample, Reach, Double strike
When Hullwrecker enters the battlefield, destroy all vehicles
From the Depths Whenever a creature you
do not control enters the battlefield, it gets
-x/-x and Hullbreaker gets +x/+x until end of turn, where
x is half that creature's toughness, rounded down
Many Tentacles Hullbreaker can block multiple creatures

The seas were calm that day. Too calm. Things were about to get rough