Exile target creature you control, then return it to the battlefield under its owner's control with X +1/+1 counters on it, where X is the number of mirrors on walls you can see from your seat.
原文You must remain in your seat while looking around the room. No, you can't pick up your seat and walk around to get more counters.
2022/10/07
原文Count only actual mirrors, not images of mirrors. If two mirrors are facing each other, you put two +1/+1 counters on the creature, not an infinite number.