Hit Recovery Change Effect on PvP in Patch 2.4 Diablo II: Resurrected

wowhead.com:

Diablo II: Resurrected Patch 2.4, currently in test on PTR, brings many important changes to the game. While most of them are PvM focused, many still have a big impact on PvP. However, there is one change that only affects PvP — and it's a big one.

One sentence. Fourteen words. And that was enough to get the careful, almost suspicious attention of the entire PvP community. Then the PTR went live. Turmoil erupted. The change wasn't just dramatic — it was meta breaking. We will analyze and discuss the Hit Recovery change planned by Blizzard and its affect on the PTR.

FHR (Fast Hit Recover) is a very important stat if you plan to do PvP. Each time you get hit, the game calculates several factors, including the nature of the attack and the percent of your total life would lose, and determines your chance to engage in a hit animation. If the hit animation procs, you are stunned for a very short time, unable to perform other actions. Stun duration can be lowered by the FHR stat, which shortens your recovery time. This is important if you don't want to get stunlocked. Being stunlocked means being put repetitively into this hit recovery animation, effectively preventing you from reacting to your opponents' actions. There are two other ways to get stunlocked: getting knocked back and getting swirled. Skills like Mind Blast, Smite, Shock Wave and Warcry can put a character into a swirl. Even if the attack does zero damage, you can still end up stunlocked.

The idea is this: after getting put in hit recovery, you gain a invulnerability frame that prevents