Urtet, Remnant of Memnarch

Whenever you cast a Myr spell, create a 1/1 colorless Myr artifact creature token.
At the beginning of combat on your turn, untap each Myr you control.
{w}{u}{b}{r}{g}, {t}: Put three +1/+1 counters on each Myr you
control. Activate only during your turn.