Waterlogged Hulk // Watertight Gondola

T: Mill a card. (Put the top card of your library into your graveyard.)

Craft with Island 3U (3U, Exile this artifact, Exile an Island you control or an Island card from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.)

Vigilance

Descend 8 — This Vehicle can't be blocked as long as there are eight or more permanent cards in your graveyard.

Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)