Ashy J'Stone

Magic Weapons. The J'Stone's weapon attacks are magical.

Spellcasting. The J'Stone is a 6th-level spellcaster. Its spellcasting ability is Wisdom (spell save DC 17, +9 to hit with spell attacks). It requires no material components to cast its spells. The J'Stone has the following spells prepared:

Cantrips (at will): sacred flame, light, thaumaturgy

1st level (4 slots): command, guiding bolt, heroism

2nd level (3 slots): calm emotions, shatter, cure wounds

3rd level (3 slots): lightning bolt, fear

Multiattack. The J'Stone makes two glaive attacks and roars if it is able to.

Glaive. Melee Weapon Attack: +12 to hit, reach 5 ft., one target. Hit: 17 (2d10 + 6) slashing damage.

Roar (recharge of 5 or 6).  Each creature within 60 feet of the J'Stone and able to hear the roar must make a DC 16 Wisdom saving throw. Each creature that fails  is frightened for 1 minute. A frightened creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

The J'Stone can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The J'Stone regains spent legendary actions at the start of its turn.

Glaive Attack. The J'Stone makes one glaive attack.

Sprint (Costs 2 Actions). The J'Stone runs up to 80 feet without incurring attacks of opportunity.

Cast a Spell (Costs 3 Actions). The J'Stone casts a spell from its list of prepared spells, using a spell slot as normal.