Multiattack.The underboss makes three attacks, using Poisoned Blade or Arcane Firearm in any combination.
Poisoned Blade.m 7, reach 5 ft. ({@damage 2d8 + 4) Slashing damage plus 7 (2d6) Poison damage, and the target has the Poisoned|XPHB condition until the start of the underboss's next turn. If the target is already Poisoned|XPHB, it instead takes an extra 7 (2d6) Poison damage.
Arcane Firearm.r 7, range 30/90 ft. ({@damage 4d10 + 4) Force damage.
Reactions.Reactions the creature can take:
Uncanny Dodge.The underboss is hit by an attack roll. {@actResponse The underboss halves the damage (round down) it takes from that attack.