Skyward Sailor

Crew 3 (Tap any number of untapped creatures you control with total power 3 or greater: This permanent becomes an artifact creature until end of turn.)
If a creature with first strike is used to crew this vehicle, it gains first strike until end of turn. The same is true for flying, deathtouch, double strike, haste, hexproof, indestructible, lifelink, menace, reach, skulk, trample, shroud, infect, battle cry, dethrone, persist, undying, wither, exalted, prowess, myriad, melee, and vigilance.