Cyclops Submarine

Crew 4 (Tap any number of untapped creatures
you control with total power 4 or greater: This
permanent becomes an artifact creature until
end of turn.)
{t}ramming speed: this card gains +2/-1 and
trample until the end of your next turn
{t}heal 2 damage from this card
this card's crew cost can be paid by removing one
loyalty point from that plainswalker