Sherman Tank

Trample, when it attacks deal 5 damage to target creature,
Crew 4 - can only be crewed by Human Tank
Drivers must have at least 2 drivers, Once
crewed stays crewed until destroyed, Must
be crewed to activate abilities once
mana cost is payed and the crewed
Sherman tank takes 3 turns to arrive at
the battlefield, when crewed has unlimited
energy {e}{e}{e}{t} - Load Main gun, {e}{t} -
fire main gun deals 15 damage to target