Season 13 has moved fast, maybe faster than most people expected. Back at launch, things felt fairly open. A few weeks later, in mid-May 2026, that's gone. The ladder has turned into a sprint, and one class is miles in front. If you've been farming endgame and checking Diablo 4 Items while tuning your setup, you've probably noticed the same thing I did: Warlock isn't just strong, it's shaping the whole season. I spent the last several nights pushing Pit tiers and testing old favourites against the current top builds, and the difference is hard to ignore. Other classes can still clear, sure, but Warlock clears with a kind of ease that makes everything else feel a step behind.

The build everyone's talking about

The big reason is the so-called Lunatic Warlock build. Early on, a lot of players assumed fire would dominate the season. That didn't last. Once people figured out how to abuse Chains of Horazon, the entire meta tilted. Summoning Fallen Lunatics and chaining their explosions across dense packs is just absurd in practice. Rooms vanish. Elites barely get a moment to act. Then you add Cage of Madness, which gives the build incredibly high uptime on Unstoppable, and the whole thing starts to feel unfair. What really pushes it over the top is scaling. The more bodies on screen, the more value you get from Dominance. In places like Artificer's Tower, where mob density stays high, the build doesn't slow down at all. If anything, it gets meaner.

The charm system has real risk

Season 13 didn't only change class balance. The new Unique Charm system has also changed how people think about gear. On paper, pulling powers from Uniques through the Horadric Cube opens up loads of options. And it does. But there's a catch, and plenty of players have learned that the hard way. When you convert a Unique into a Charm, the values reroll from scratch. That means your perfect Ancestral piece can turn into a painfully average result in seconds. I've seen people do it anyway, then regret it almost immediately. There's also the loss of weapon and amulet scaling to think about. Giving up the bonus from a two-hander or the extra value from an amulet isn't a small trade. It makes the system flexible, not automatically efficient.

Barbarian has taken a hit

Barbarian mains have had a rough stretch. The May 6 hotfix hit the class right where it hurt most, especially the one-shot boss setups built around Aspect of Limitless Rage and Melted Heart of Selig. Before that patch, some of those builds were deleting encounters in a way that clearly wasn't going to last. Now there's a 300% damage cap and a four-second window, which makes the whole thing much tighter and a lot less explosive. Whirlwind still works, and it's still a comfortable pick for players who like steady pressure and simple rotations, but the ceiling isn't what it was. You can still make Barbarian viable. You just can't bully the game with it the same way anymore.

What could happen next

If the current pace holds, the meta probably isn't done shifting yet. Holy Bolt Paladin is getting more attention every day, and it has that familiar feel of a build people first call promising, then suddenly call broken a week later. That's just how these seasons go. One discovery changes everything, then the rest of the player base scrambles to catch up. Right now, Warlock is still the class to beat, but anyone pushing high-end content or looking into a Diablo 4 Mythic Prankster Dungeon Carry Run can already see where the conversation is heading. If you don't adapt, you'll feel it pretty quickly once the tougher content starts asking more from your build than last month's setup can give.