Floating Flamethrower

Stealth

+23 (expert) or DC 38 (master) to notice the pattern of the orb's trajectory

Disable

three DC 40 Thievery (legendary) checks or castings of dispel magic (7th level; counteract DC 40), one each to pull out or disable the elemental cores hidden in the floating skull's right eye, left eye, and mouth

AC 42, Fort +30, Ref +33

Hardness

25

HP

100 (50)

Immunities

fire

Blaze [Reaction] (evocation, fire);

Routine

(3 actions) The trap loses 1 action per turn per successful check to disable. The floating flamethrower uses its first action to release a gout of flame in a 15-foot cone that deals 4d6+4 fire damage (DC 40 basic Reflex save), its second action to fly in a U-shape in a random direction, and its third action to release another gout of flame.