Sources
CR
Type
Size
Alignment
Movement

Mercane

Large Celestial, Lawful Neutral

Armor Class 13 (mage armor)
Hit Points 75 (10d10 + 20)
Speed 30 ft.
STR
16
+3
DEX
10
+0
CON
15
+2
INT
18
+4
WIS
16
+3
CHA
15
+2
Saving Throws INT +7, WIS +6, CHA +5
Skills Insight +9, Perception +6, Persuasion +5
Senses passive Perception 16
Languages Common, Giant, telepathy 60 ft. (see also Mercane telepathy)
Challenge 5 (1,800 XP)

Traits

Mercane Telepathy. The mercane can communicate telepathically with any other mercane it knows, regardless of the distance between them.

Spellcasting

Spellcasting (Psionics). The mercane casts one of the following spells, requiring no spell components and using Intelligence as the spellcasting ability (spell save DC 15):

At will: detect magic, light

1/day each: dimension door, invisibility, mage armor (self only)

Actions

Multiattack. The mercane makes three Psi-Imbued Blade attacks.

Psi-Imbued Blade. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit:10 (2d6 + 3) slashing damage, and if the target is a creature, it must succeed on a DC 15 Wisdom saving throw or be frightened of the mercane until the end of the target's next turn.

Lore

Mercanes are the mysterious, magical creations of one or more deities whose portfolios revolve around fair commerce. Standing 12 feet tall, they are lanky blue beings who dress in elegant robes and have elongated heads and long, spindly fingers.