Lapis Rover

Flying
{5}, Exile Lapis Rover, Milky Rover, Olive Rover,
Sable Rover and Scarlet Rover you control:
Create Rainbow Rover, a 6/6 Construct artifact creature token with flying, vigilance, trample, lifelink, and haste that's all colors. When that
token leaves the battlefield, return all cards
exiled with Rainbow Rover except Rainbow
Rover to the battlefield tapped under their
owners' control.