The Fathomer

Medium aberration, neutral evil

Armor Class

14 (17 with mage armor)

Hit Points

66 (7d8 + 35)

Speed

30 ft., swim 60 ft.

Saves

Con +8, Wis +8, Cha +10

Skills

Deception +10, Insight +8, Perception +8, Stealth +7, Survival +8

Languages

Aquan, Common, telepathy 120 ft.

Challenge

8

Amphibious

The Fathomer can breathe air and water.

Metamagic

Once a day the Fathomer can use each one of these spell features: Distant Spell. When he casts a spell that has a range of 5 feet or greater, he can double the range of the spell. Quickened Spell. When he casts a spell that has a casting time of 1 action, he can instead use a bonus action.

Regeneration

The Fathomer regains 10 hit points at the start of its turn if it has at least 1 hit point.

Spellcasting

The Fathomer is a 9th-level sorcerer. His spellcasting ability is Charisma (spell save DC 18, +10 to hit with spell attacks). He has the following sorcerer spells prepared: • Cantrips (at will): blade ward, chill touch, light, message, minor illusion • 1st level (4 slots): charm person, mage armor, magic missile, thunderwave • 2nd level (3 slots): darkvision, mirror image, scorching ray, suggestion • 3rd level (3 slots): counterspell, fear, haste • 4th level (3 slots): banishment, blight, confusion • 5th level (1 slot): teleportation circle

Actions

+3 Dagger

Melee Attack: +7 to hit, reach 5 ft., one target. Hit: 9 (1d4 + 7) piercing damage.