Goblimp

When a creature crews Goblimp, you may exile it.
Whenever Goblimp attacks, it gains flying until
end of turn. Then return all cards exiled with it
to the battlefield under your control tapped and attacking. They gain flying until end of turn. Sacrifice them at end of combat.
Crew 4 (Tap any number of creatures you control
with total power 4 or more: This Vehicle becomes an artifact creature until end of turn.)