By the time you reach Act 4, The Prisoner can feel like a real brick wall. He’s not the type of boss you can just stand in front of and smash until he drops — you’ve gotta read his moves and stay mobile. One of the first things you’ll notice is his huge chain sweep. It’s got a slow, obvious wind-up where he drags that chain back, and that’s your cue to move. Either back out of range or dash through him to the safe side. 
Trying to eat the hit is a bad idea; it’ll chunk your health in seconds. Melee builds need to treat this as the “time to bail” signal, while ranged builds should already be far enough out, just watch the arc. Right after the sweep, there’s a short recovery window — perfect for getting in a couple of hits before he’s back on you. If you’re farming gear for this fight, having a stash of PoE 2 Currency ready can make gearing up a lot easier.
His second main attack is the ground slam. He’ll lift his weapon high, then smash it into the floor, sending a shockwave outwards. This one’s easier to dodge — a quick sidestep or dash usually does the trick. The problem is, he likes to mix these moves up. You’ll be dodging chains one second, then suddenly a slam’s coming your way. Keep your eyes on his animations, because they tell you exactly what’s coming next. It’s easy to get caught if you’re too focused on hitting him instead of watching his body language.
Once you get him down to around sixty percent health, things get trickier. He’ll start electrifying parts of the floor, and those zones will chew through your health if you stand in them. This changes the fight completely — you can’t just run around randomly anymore. You’ve gotta think about where you’re moving, making sure you don’t trap yourself in a corner with nowhere safe to stand. Keep circling him, stay in the clear areas, and wait for those chain sweep recovery moments to land your hits. It’s a lot more about control here than speed.
For every build, the golden rule is patience. Don’t blow your whole combo just because you see an opening — you’ll end up eating a chain or slam in the face. Chip away at him, keep your movement clean, and focus on staying alive first, damage second. The fight’s basically a slow dance: learn his patterns, respect the electrified zones, and only commit when you know it’s safe. With a bit of practice, you’ll drop him without too much stress — and if you’re planning ahead, grabbing some cheap poe 2 currency can help make sure your gear’s ready for the job.