Bronze Automaton

The Bronze Automaton is one of three Act 2 boss enemies with 300/320 HP. It starts with 3 Artifact stacks and spawns two Bronze Orb minions at the start of combat. It cycles through Boost (buffs itself and minions), Flail (two attacks at 7-9 damage each), and Hyper Beam (45-50 damage to player). After using Hyper Beam, it is Stunned for 1 turn. The Bronze Orb minions attack independently for 7-10 damage per turn.

The Bronze Automaton's Artifact means you cannot immediately apply debuffs — strip the stacks first before relying on Weak or Vulnerable. Hyper Beam's massive damage requires either strong Block or staying above a threshold where it would not one-shot you. The Bronze Orbs are a persistent threat and should be killed as early as possible to reduce ongoing damage. AoE attacks or multi-target cards help dispatch them efficiently.