Conqueror of Kaladesh

Conqueror of Kaladesh's power and toughness
are each equal to the combined power of all tapped creatures you control.
Vehicle Crew 6 (Tap any number of untapped Vehicles you control with total power 6 or greater: This vehicle becomes an artifact creature until the end of turn.)
"When all the inventors on Kaladesh work together to the same goal, look what can be born!"