Level 56 confusion beasts are encountered in the confusion area of the quest. Here, they are able to poison the player, and also use a magic attack in the form of a purple orb fired at the player if they try to run away.
Only one of the five beasts is real, the other four beasts are hallucinations which can still damage and poison the player, but cannot be damaged and will disappear after the player has hit them 8 times. When the real beast has been killed, one of the doors in the area disappears. This process must be repeated four more times until only one door remains.