Crew

Crew is a keyword ability introduced in Kaladesh to enable the vehicle artifact subtype. It allows vehicles to become artifact creatures until end of turn. 
==Description==
To activate the crew ability, tap any number of creatures you control with total power equal to or greater than the crew number. Because the crew ability doesn't use the tap symbol, you can tap any untapped creature you control, even one that just entered the battlefield. You can even tap an animated Vehicle to crew a Vehicle. 
Crew evolved from a "location" mechanic, originally envisioned for Ixalan. The mechanic was first previewed on the card <c>Ovalchase Dragster</c> at Pax West 2016.Magic Twitch channel (September 2, 2016). Magic at PAX: Kaladesh Debut.
===History===
After Kaladesh crew also appeared in Aether Revolt. and Ixalan which made the mechanic Crew available in two different non-neighbouring blocks in Standard. It was also used for the Weatherlight in Dominaria. 
The mechanic is now considered to be in the low end of evergreen or the high end of deciduous.
In retrospect, <c>Heart of Kiran</c> has an unusual templating in that it has one activated ability with another ability giving it a secondary cost. Later Vehicles would simply have a second activated ability. Due to the definition of "crewing" given by the rules, planeswalkers enchanted by <c>Bound in Gold</c> or <c>Intercessor's Arrest</c> can still animate the Vehicle.
While Pilots regularly modify the Vehicles they Crew, and are the first Vehicles to interact with the creatures that Crew them.
<c>Luxurious Locomotive</c> is the first Vehicle with a rider on its Crew ability; amongst other things, it prevents a player crewing pre-combat and then crewing with attacking Vigilance creatures while the attack trigger is on the stack.
===Rules change===
Previously, a vehicle that had become a creature was able to be tapped for its own crew ability. This rarely came up, and it doesn't make a lot of sense for a vehicle to crew itself, so the rules were changed slightly to prevent that. Starting with Kamigawa: Neon Dynasty, you must now tap another creature to crew a vehicle.
==Rules==
==Examples==
==References==