Upgrade Truck

Crew 2 (Tap any number of creatures you control with combined power 2 or more: This vehicle becomes an artifact creature until the end of the turn)
When Upgrade Truck enters the battlefield place three +1/+1 counters on it.
During your upkeep phase you may remove up to two +1/+1 counters from Upgrade Truck and place them on target creature.
{t}Sacrifice Upgrade Truck, create two 1/1 colorless Servo artifact creature tokens.