Amphibious. Lowarnizel can breathe both air and water.

Spellcasting (Psionics). Lowarnizel casts one of the following spells, requiring no spell components and using Intelligence as the spellcasting ability (spell save DC 16):

1/day each: dispel magic, haste, protection from evil and good, sending

Multiattack. Lowarnizel makes one Bite attack and two Claw attacks.

Bite. Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit:16 (2d10 + 5) piercing damage plus 4 (1d8) force damage.

Claw. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit:9 (1d8 + 5) slashing damage.

Singularity Breath (Recharge 5–6). Lowarnizel creates a shining bead of gravitational force, then releases the energy in a 30-foot cone. Each creature in that area must make a DC 17 Strength saving throw. On a failed save, a creature takes 36 (8d8) force damage, and its speed becomes 0 until the start of the dragon's next turn. On a successful save, a creature takes half as much damage only.

Change Shape. Lowarnizel magically transforms into any creature that is Medium or Small, while retaining his game statistics (other than his size). This transformation ends if the dragon is reduced to 0 hit points or uses a bonus action to end it.