Droid Tri-Fighter

First strike
Droid Tri-Fighter enters the battlefield with four shot counters on it.
{2}{t}: Remove a shot counter and create two 1/1 artifact creatures called Buzz Droid with "At the beginning of your upkeep you may equip or unequip Buzz Droid to/from a vehicle.
At the beginning of your end step put a -1/-1 counter on equipped vehicle."