Primordial Tar Haunt CR 6
CN Persistent haunt (20-ft.-radius pool of tar)
Caster Level 6th
Notice Perception DC 22 (to hear the dying cries of primordial creatures)
hp 27; Trigger proximity; Reset 1/day
Effect When the primordial tar haunt is triggered, a deinonychus, pteranodon, and rhinoceros rise from the bubbling sludge (as summon monster IV) and charge at the nearest creatures (melee touch attack +8). Creatures struck by the primordial tar haunt gain the tarred condition and make a Reflex save each round (DC 16 + 1 per previous check) or are dragged 5 ft. closer to (or into) the tar pit.
Destruction The bones of a deinonychus, pteranodon, and rhinoceros must be doused in holy water and set ablaze with a divine spell before being cast into the primordial tar haunt.
Tarred: You take a -4 penalty to all Charisma-based skill checks. Spells that target you instead affect a random target within 30 feet (no save) and have a 10% chance per caster level of triggering a random effect from the list below. The tarred condition can only be removed via dispel magic (CL 18th), heal, limited wish, miracle, or a wish. After 2d4+1 days the tarred condition alleviates itself as the substance crumbles away.
1 - Splay: targeted spell now affects all targets within 30 ft. of the original target
2 - Negate: targeted spell is negated and has no effect
3 - Damaging: targeted spell does twice the damage (in the case of spells that do not deal damage, double duration)
4 - Penetrating: targeted spell grants its caster a +10 circumstance bonus to bypass spell resistance
5 - Tricky: the saving throw DC(s) for the targeted spell are increased by +5
6 - Rebound: targeted spell also rebounds back on its caster