Cailleach Hag

Already Tired. The hag is immune to gaining more exhaustion as it always has 4 levels of exhaustion for the purpose of an effect that depends on exhaustion.

Eyes of  the Mirage. The hag can't tell the difference between illusion and reality, but it can interact with illusions like they are the real thing,.If a non-cailleach hag tries to interact with an illusion a cailleach hag has interacted, it acts as an illusion. Ex: Being able to walk across an illusory bridge and an orc tries do the same and falls through it.

Sun Amulet Magic. The hag carries a sun amulet, a magic staff. The hag can use its burrowing speed only while wearing the amulet. If the amulet is lost or destroyed, the hag must craft another, which takes a year and a day. Only a Cailleach hag can use a sun amulet.

Sand Walk. The hag can move across and climb sandy surfaces without needing to make an ability check, and difficult terrain composed of sand or rocks doesn’t cost any extra movement.

Multiattack. The hag makes two Slam or Sun Shard attacks.

Slam. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 10 (2d8 + 1) bludgeoning damage plus 18 (4d8) cold damage.

Sun Shard. Ranged Spell Attack: +6 to hit, range 60 ft., one target. Hit: 30 (6d8 + 3) fire damage, and the target’s speed is reduced by 10 feet until the start of the hag’s next turn.

Horrific Feast. The hag feeds on the corpse of one enemy within reach that died within the past minute. Each creature of the hag’s choice that is within 60 feet and able to see the feeding must succeed on a DC 15 Wisdom saving throw or be frightened of the hag for 1 minute. While frightened in this way, a creature is incapacitated, can’t understand what others say, can’t read, and speaks only in gibberish. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature’s saving throw is successful or the effect ends for it, the creature is immune to the hag’s Horrific Feast for the next 24 hours.

Spellcasting. While holding or riding the graystaff, the hag casts one of the following spells, requiring no material components and using Charisma as the spellcasting ability (spell save DC 14):

At will: mislead

1/day each: flame strike, fire storm, mirage arcane