Cleira, Llanowar Speaker

Eminence - Whenever a nontoken Elf you control becomes tapped, if Cleira, Llanowar Speaker is in the command zone or on the battlefield, create a 1/1 green Elf creature token.
Nontoken Elves you control have "{t}: Add {g}."
Other Elves you control get +X/+X where X is your devotion to green.