Scarlet Rover

Haste
{5}, Exile Scarlet Rover, Lapis Rover,
Milky Rover, Olive Rover and Sable 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.