Antimagic Susceptibility. A.M.E.R. is incapacitated while in the area of an antimagic field. If targeted by dispel magic, A.M.E.R. must succeed on a Constitution saving throw against the caster's spell save DC or fall unconscious for 1 minute.

Multiattack. A.U.S.T.I.N. makes two melee attacks. Alternatively, A.U.S.T.I.N. can use one gadget

Slam. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) bludgeoning damage.

Gadget. A.M.E.R. is equipped with a nonmagical arsenal to perform his tricks. The material, mechanisms, and ammunition for each of these is stored within his casing.
Oil Slick: Creates a 10ft square oil slick in front of A.M.E.R. and turns it into Difficult Terrain for 10 turns. When the grease appears, each creature standing in its area must succeed on a DC14 Dexterity saving throw or fall Prone. A creature that enters the area or ends its turn there must also succeed on that save or fall Prone.
Smoke Bomb: Create a 20-foot-radius sphere of fog centered on a point within range (15 ft). The sphere is Heavily Obscured. It lasts for 3 turns or until a strong wind disperses it.
Fireworks: Launches a dazzling array of flashing, colorful light. Each creature in a 15-foot cone originating from A.M.E.R. must succeed on a DC14 Constitution saving throw or be Blinded until the end of their next turn.
Pigeon Drone: (single use) A.M.E.R. summons a pigeon from a hidden door in his chassis. The pigeon is a self-guided bomb disguised as a normal pigeon. Any creature that makes a DC16 Investigation or DC17 Perception check will realize it is a bomb. The pigeon can fly on its turn up to 20 ft, has 7 hit points, and can explode as an action, dealing (8d6) fire damage in a 20ft radius sphere centered on itself. Each creature in the sphere makes a DC16 Dexterity saving throw, taking half damage on a successful save.