Bismarck

Trample
Unstoppable (Can not be prevented from attacking)
Arrogant (Must attack if able)
Confidence (When this card is played, caster may no longer cast creature spells until this card is destroyed)
Pay 5 life - Instead of using 3 blue mana, you may cast this card using 3 of any other color.
Must be destroyed in combat.
Toughness does not reset
This vehicle has a toughness of X, where X is 100 times the amount of [Boat] type cards present when this spell was cast, with a minimum of 350