Emyrik's Myr Crafters

{3},{t}: Create a token that is a copy of another
target Myr you control.
Whenever you tap a Myr for mana, you may
untap Emyrik's Myr Crafters.
"You two have learned how to create more of
your kind. Your new assignment is to build me
an army. I believe in you."
-Emyrik