Baldur's Gate Wiki

The MDOG1.ITM is an undroppable item equipped by a creature, usually in a ring slot.

This item is furnished to the summoned creature from the Moon Dog Figurine (Cerberus), as well as an equivalent enemy creature titled Aranthis.

The item provides a few status effect immunities based on charm/domination, poison and poison damage, and fear/horror/morale breaking.

The item also bestows a graphic animation color glow pulse to the creature for visual effect.