Once per room, the wearer is able to affect a critical hit on a creature that is normally immune to critical hits (e.g., Constructs, Oozes, Plants, Undead, etc.) as well as perform a sneak attack on a creature that is normally immune to being sneak attacked.
This item only overcomes a monster’s crit/sneak immunity if the wearer attacks with a Melee weapon. Other tokens that allow Ranged sneak attacks do not overcome this token’s melee-attack-only restriction.