Diablo 2’s new Warlock can turn demons into literal meat shields — and it’s already public

One week in, and Diablo 2’s Warlock can make summoned pets into literal damage shields

This caught my attention because it’s exactly the kind of emergent trick that can both delight and derail a game’s balance. Within days of Diablo II: Resurrected’s Reign of the Warlock expansion going live, YouTuber Coooley published a build that uses the Warlock’s Bind Demon and Blood Oath skills to redirect most incoming damage onto a chosen summon – then outfits that summon with gear and an immunity profile that turns it into an effectively immortal meat shield. The player survives while the demon eats hits, and fights that should be tense become a slow, safe chip-down.

• Key takeaway: Bind Demon + high Blood Oath percentages can make pets absorb almost all player damage.
• Build basics: recruit an immune demon, tune Blood Oath (Coooley highlights an ~89% “sweet spot”), stack survivability and summon-focused gear.
• Typical gear involved: Treachery (for resist/attack speed), The Rising Sun (regen/on-hit heal), and Malice (weapon), plus other summon-boosting items.
• Why it matters: it trivializes difficulty spikes, slows pacing, and showed up publicly before any Blizzard hotfix.

Breaking down the exploit – what players are actually doing

Coooley’s setup is elegantly simple. Bind Demon is a high-level Warlock skill that lets you recruit injured demons as pets. Blood Oath is a redirection mechanic that assigns a portion of incoming damage to your bound pet. Tune Blood Oath high enough and most hits go to the demon instead of you. The trick is picking a demon with the right immunities (or using one that gains immunity through the encounter), so it takes almost no damage. Stack the usual Diablo-second-era cheese – Treachery for defenses and attack speed, The Rising Sun for sustain, Malice for flat damage — and you’ve got a player who can tank Prime Evils without blinking, just slowly whittling them down.

Different creators and guides diverge on specifics. Some recommend a minimalist approach focused on the pet’s tanking alone (Coooley/PC Gamer coverage), while other community guides push high-end gear like Enigma and merc builds to scale both survivability and summon output. But the core interaction — redirecting damage to a summoned entity and ensuring that entity doesn’t die — is the same across variations.

Why this matters now

Reign of the Warlock is the first new Diablo II class in 25 years and brings a heavy summon focus that was always going to invite creative play. What’s notable here is the timing: the exploit was demonstrated publicly by a popular creator before Blizzard has issued any hotfixes or public commentary. That means ladder seasons, hardcore races, and early impressions are being shaped around this unintended playstyle.

The community reaction is split. Some players call for quick nerfs because this trivializes content and makes endgame pacing grind to a crawl. Others argue it’s a legitimate summoner identity and part of what makes the Warlock feel distinct. Both positions matter — Blizzard has to decide if this is a design intention or a balance oversight that undermines challenge.

How Blizzard might respond — and what to watch

There are a few obvious levers: reduce maximum Blood Oath redirect percentages, alter Bind Demon recruitment rules (limiting which demons can be bound or making binding risky), or adjust summon damage scaling so pets can’t soak indefinitely. None of those have appeared in patch notes as of Feb. 22, and there’s no official Blizzard statement targeting the Bind Demon/Blood Oath interaction yet.

Keep an eye on developer channels and ladder leaderboards. If Blizzard wants to preserve competitive or hardcore play integrity for Ladder Season 13, an early hotfix is likely. If they don’t act, we can expect more creators to optimize demon-shield builds and the meta to tilt toward ultra-safe summoner play.

The gamer’s perspective — why to care

As someone who follows class balance closely, I’m torn. There’s joy in the discovery — part of Diablo’s DNA is finding synergies the devs didn’t anticipate. But when a single interaction can make a player effectively immortal while forcing fights into glacial pacing, it risks making large swaths of content unchallenging and boring. If you like summoner builds and want a new way to play, this is a fun laugh for now. If you care about ladder purity or tough endgame content, this is the exact exploit you should watch Blizzard address.

TL;DR

Coooley’s Warlock video showed that Bind Demon + a high-tuned Blood Oath can make demons take almost all incoming damage, especially if the summoned demon is immune to the hit types in the fight and the player stacks the right gear. It’s an elegant exploit that surfaced within days of the expansion and hasn’t been patched — expect debate, potential hotfixes, and a flood of variations from creators while Blizzard decides whether this is a feature or a bug.