Actions/Abilities/Traits: (Pathfinder 2e)
Ability
Attack of Opportunity [Reaction]
Stinger only.
Ability
Eurypterid Venom
(poison) Saving Throw DC 14 Fortitude; Maximum Duration 4 rounds; Stage 1 1d4 poison damage (1 round); Stage 2 1d6 poison damage (1 round); Stage 3 1d6 poison damage and enfeebled 1 (1 round)
Offense
Melee
Circumstance: combat round (melee)
pincer +6 [+1/-4], Damage 1d6+2 slashing plus Grab
Trait
Amphibious
An amphibious creature can breathe in water and in air, even outside of its preferred environment, usually indefinitely but at least for hours. These creatures often have a swim Speed. Their bludgeoning and slashing unarmed Strikes don't take the usual -2 penalty for being underwater.
Trait
Animal
An animal is a creature with a relatively low intelligence. It typically doesn't have an Intelligence ability modifier over -4, can't speak languages, and can't be trained in Intelligence-based skills.
Perception
low-light vision
wavesense (imprecise) 30 feet