Sir Horbrace Walden, Arbiter

Itaraph — Whenever a player deals damage, if Horbrace Walden, Arbiter is in the command
zone or on the battlefield, that player gains 1 guilt counter.
When Horbrace Walden, Arbiter attacks, target
player removes all guilt counters and taps a
number of creatures of your choice equal to the
number of guilt counters removed this way.
Only the guilty can judge the guilty.