The Mechanist, Tactical Tinkerer - Lita, Mechanical Engineer (Borderless)

{2}{W} - Legendary Artifact Creature — Artificer - Vigilance

At the beginning of your end step, untap each other artifact creature you control.

{3}{W}, {T}: Create a 5/5 colorless Vehicle artifact token named Zeppelin with flying and crew 3. (It has "Tap any number of creatures you control with total power 3 or more: This token becomes an artifact creature until end of turn.")