Medium Ooze, unaligned
Armor Class 7
Hit Points 170 (20d8+80)
Speed walk +20, climb +20
Challenge 9
Skills perception +2
Damage Resistances nonmagic B/P/S weapons
Damage Immunities acid, cold, fire, poison
Condition Immunities blinded, charmed, deafened, exhaustion, frightened, poisoned, prone
Senses blindsight 60' (blind beyond), passive Perception 12
Languages —
Amorphous. Move through space 1ft.+ wide with o squeezing.
False Appearance. While motionless indistinguishable from that work of art.
Ooze Nature. The sinoper ooze doesn't require sleep.
Spider Climb. Difficult surfaces even ceilings no ability check.
Multiattack. Three Paint Splash attacks.
Paint Splash. Melee or Ranged Weapon Attack: +9 to hit 5 ft. or range 20/60' one creature. 18 (3d8+5) acid and target is coated in paint. Roll a die. Even result: target is coated in a warm color paint such as red orange or yellow. Odd result: target is coated in a cool color paint such as blue green or purple. A creature including target can use its action to remove the paint.
Foment Pigment (Recharge 4-6). Activates latent magic in its paint burning/freezing paint off creatures affected by Paint Splash. Each creature coated in paint within 60' of it: 35 (10d6) cold (if coated in cool color) or fire (warm color) and poisoned 1 min (DC 16 Con half damage and isn't poisoned). Each affected creature no longer coated in paint.
Source: Tome of Beasts 3 · OGL/Open