Rolf's Three-Shoe Beating

If your opponent has any monsters on the field,
your opponent must Tap their highest value
monster in Toughness and Untap any other
Tapped monster. Decrease that monster's
Toughness value by 3 counts. If no monster is
on the field, deal 3 counts of damage directly to
your opponent.
"Is this a test?"
"Obstinate coin from where I don't know! Prepare
yourself for an unmerciless beating by Rolf's shoe(s)!"