Trigger A creature within the monster's reach uses a manipulate action or a move action, makes a ranged attack, or leaves a square during a move action it's using.
Effect The monster attempts a melee Strike against the triggering creature. If the attack is a critical hit and the trigger was a manipulate action, the monster disrupts that action. This Strike doesn't count toward the monster's multiple attack penalty, and its multiple attack penalty doesn't apply to this Strike.
Melee Stinger +33 (agile, reach 10), Damage 3d6+17 piercing plus Red Ant Venom
Constrict
5d10 bludgeoning damage, DC 38 basic Fortitude.
Before using Constrict, the ant can choose to smash one creature that it has Grabbed or Restrained against the ground. That creature uses the result one degree of success worse than its Fortitude save result against Constrict, but it is then no longer Grabbed or restrained by the ant.
The monster deals the listed amount of damage to any number of creatures Grabbed or Restrained by it. Each of those creatures can attempt a basic Fortitude save with the listed DC.
For the Queen!(olfactory)
The red commander ant gives a pheromone signal to spur other ants into a fury. All ants within 30 feet who can smell this signal gain a +1 status bonus to attack rolls, reduce their frightened condition to 0, and are immune to the frightened condition for 1 minute.
Red Ant Venom(poison)
Saving Throw DC 38 Fortitude
Maximum Duration 4 rounds
Stage 1 3d6 poison damage and Enfeebled 1 (1 round)
Stage 2 4d6 poison damage and Enfeebled 2 (1 round)
Stage 3 6d6 poison damage and Enfeebled 3 (1 round)
The Queen's Enemy(concentrate)
The red commander ant designates a single creature within 60 feet that it can see as its queen's enemy. All ants within 120 feet of the red commander ant deal an additional 1d8 bleed damage when they hit the target with mandibles Strikes. These effects last for 1 minute, or until the red commander ant uses The Queen's Enemy on a different creature.
Improved Grab
Trigger The monster's last action was a successful Strike that lists Improved Grab in its damage entry, or the monster has a creature Grabbed or Restrained
Effect If used after a Strike, the monster attempts to Grapple the creature using the body part it attacked with as a free action. This attempt neither applies nor counts toward the creature's multiple attack penalty.
The monster can instead use Improved Grab as an action and choose one creature it's grabbing or restraining with an appendage that has Improved Grab to automatically extend that condition to the end of the monster's next turn.