Aleas

An aleas is a celestial that is summoned from a mirror in order to search for a specific creature. The aleas perfectly duplicates the chosen creature, including its skills and equipment, and pursues the original creature with unerring aim. An aleas’s mission may be to deliver a message to, aid, or even kill its double; the aleas disappears once it has fulfilled its mission. The aleas never lies or purposely deceives.

An aleas has a challenge rating equal to one-half the character level or challenge rating of the creature it imitates (rounding up). Consult Statistics for Monsters by Challenge Rating to determine its XP.

Double. When the aleas is summoned, it takes on the current appearance of an individual humanoid creature of the summoner’s choice. Except for its type, the aleas shares all statistics of the creature it duplicates, including traits, actions, abilities, known spells, and any resources spent (for instance, it gains the known spells and currently available spell slots of the original creature, but not expended spell slots). When summoned, it is not subject to any non-permanent effects or conditions affecting the doubled creature at the time. After it is summoned, changes to the doubled creature’s statistics have no effect on the aleas. The aleas acts immediately after the doubled creature in the initiative order.

When summoned, the aleas gains an exact copy of every object the double creature carries, except for powerful unique items such as artifacts. The doubled equipment disappears when the aleas is dispelled or when it has been out of the aleas’s possession for 1 minute.

The aleas is destroyed if it travels to a different plane, when it is reduced to 0 hit points, or when the doubled creature is reduced to 0 hit points.

Double Sense. The aleas knows the distance and direction to the doubled creature at all times.

Double Vulnerability. The aleas is vulnerable to damage dealt by its doubled creature.

Double Weakness. When the aleas makes an attack or casts a spell that deals damage, creatures other than the doubled creature take only half the damage dealt.

ACTIONS

Doubled Action. The aleas gains all the actions, reactions, and bonus actions available to its double

Combat

The aleas focuses on fighting its double. It ignores other combatants unless they’re in the way, although it makes no effort to avoid damaging its double’s allies. If its double makes an attack or casts a damaging spell, the aleas does the same, if doing so allows them to target their double.