Knights of the Chronometer
Knights of the Chronometer enters the battlefield with X +1/+1 counters on it.
{x}{g/u}{g/u}{g/u}, {t}: Create a creature token that is a copy of Knight of the Chronometer. Then, remove a number of +1/+1 counters from that creature equal to the number of cards named Knights of the Chronometer that you control.
Card Comments