Activate only if the 1 and only monster on your side of the field is "Chu-Ske the Mouse Fighter", "Monk Fighter", or "Master Monk". That monster cannot be destroyed as a result of battle, and is unaffected by any of your opponent's monster effects.
Near Mint Unlimited - $1.10
Lightly Played Unlimited - $1.10
Moderately Played Unlimited - $1.00
Heavily Played Unlimited - $0.90
Damaged Unlimited - $0.80