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Explosive Crystal SpheresHazard 6

Legacy Content

Complex Magical Trap 
Source Crown of the Kobold King pg. 91
Complexity Complex
Stealth +15 (expert)
Description Shimmering, glyph-graven, two-foot-diameter crystalline spheres shimmer and condense in the air, launching with explosive force at intruders.
Disable DC 25 Thievery (expert) to locate and deface tiny activation runes located at one of the six locations that spawn crystal spheres, or DC 28 Arcana (expert) or DC 28 Occultism (expert) to manipulate the magical energy at one of those locations to render the spheres inert, or dispel magic (3rd level; counteract DC 22) to counteract one of the crystal sphere spawn points
AC 24, Fort +11, Ref +17
Sphere Hardness 13, Sphere HP 54 (BT 27); Immunities critical hits, fire damage, object immunities, precision damage
Manifest Crystal Sphere [reaction] Trigger Three or more creatures remain in the Outer Ring for 6 seconds or longer; Effect Six spheres of crystal, each measuring 2 feet in diameter, manifest from thin air and begin quickly floating toward intruders. A sphere manifests at each of the points on the map indicated with a small numeral (labeled 1 through 6); the trap then rolls initiative.
Routine (6 actions) On each of the trap's actions, a crystal sphere that hasn't yet taken an action during the turn either flies 25 feet toward the closest creature in the Outer Ring (if no creature is within 25 feet), or it attacks a visible creature within 25 feet (the crystal spheres can sense targets via darkvision). If a crystal sphere attacks a target, that target takes 1d6 force damage (DC 24 basic Reflex save) as the sphere hits them and bursts. A creature can be attacked by multiple spheres in a turn, but a sphere always targets the closest target. Once a sphere attacks and bursts, it vanishes but respawns at its spawn point at the start of the next turn and continues its routine. A sphere that has been destroyed or had its spawn point disabled vanishes and doesn't continue to respawn and attack, and the trap loses 1 action for each sphere destroyed or disabled in this way.