More Than Meets the Eye 2W (You may cast this card converted for 2W.)

Whenever Prowl attacks, exile up to one other target tapped creature or Vehicle. For as long as that card remains exiled, its owner may play it.

Whenever a player plays a card exiled with Prowl, you draw a card and convert Prowl.
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Prowl, Pursuit Vehicle

Living metal (As long as it's your turn, this Vehicle is also a creature.)

Whenever another creature or Vehicle enters the battlefield under your control, put a +1/+1 counter on Prowl. If this is the second time this ability has resolved this turn, convert Prowl.