From Pathfinder Society Scenario #2-18: The Fanciful March of Urwal, which isn't enabled.

Dragon Forest Rot

CREATURE 4

UNCOMMON MEDIUM ABERRATION EVIL

Perception +8; darkvision

Skills Athletics +11, Intimidation +10

Str +5, Dex +2, Con +3, Int -4, Wis +2, Cha +2

AC 20; Fort +13, Ref +10, Will +10

HP 80; Weaknesses fire 5; Resistances poison 5

Flame-Scorched

If the forest rot takes fire damage, it is Slowed 1 until the end of its turn.

Spores

Trigger An adjacent creature damages the dragon forest rot.

Effect The dragon forest rot sprays spores on the triggering creature. The spores deal 2d4+5 piercing damage with a DC 19 basic Fortitude save. On a critical failure, the triggering creature gains weakness to slashing 5 for the next 4 rounds.

Stench (aura, olfactory)

20 feet. A creature that enters or starts its turn in the emanation must succeed at a DC 19 Fortitude save or become Sickened 1. On a critical failure, the creature also takes a –5-foot status penalty to its Speeds for 1 round. While within the aura, the creature takes a -2 circumstance penalty to saves to recover from the sickened condition. A creature that succeeds at its save is temporarily immune to the of all dragon forest rots for 1 minute.

Speed 20 feet, climb 10 feet, swim 10 feet

Melee Tree Claws +14, Damage 2d8+5 slashing

Breath Weapon (arcane, poison)

The dragon forest rot breathes a toxic cloud that deals 5d6 poison damage in a 15-foot cone (DC 20 basic Fortitude save).

It can't use Breath Weapon again for 1d4 rounds.

Pathfinder Society Scenario #2-18: The Fanciful March of UrwalOGL