Result: You have a character with 20,000 HP, 75% block, and 80% critical hit chance. You shatter organs while blocking slams. This build is historically nerfed by developers because it breaks the game.

: The standard choice for raw critical damage. It provides a higher flat bonus (+90%) compared to Gladiator Might. Amalgam Organ Shatter

There is no contest here. Organ Shatter is designed to delete things. In the first 0.5 seconds of a fight, an Organ Shatter build will have already landed three hits, one of which was a critical. If that critical triggers the shatter, a boss loses 15-25% of its current HP instantly.

Advocates of Gladiator Might argue that this technique is highly effective in combat sports and competitive fighting, as it allows practitioners to assert their dominance and wear down their opponents. By building raw power and endurance, practitioners can outlast and overpower their opponents.

Endgame bosses in Grim Dawn (like Crate or Callagadra) or PoE (Uber bosses) have massive health pools, phases, and immunity frames. They also have devastating one-shot mechanics. Organ Shatter’s %-health damage sounds great, but these bosses often have specific resistances to "life removal" effects (down to 10% efficiency). Furthermore, Shatter builds cannot survive the constant chip damage. Gladiator Might simply out-sustains the boss. You will kill it slower, but you will actually kill it.

: A popular variant that grants +85% Critical Damage and -60% Heavy Attack Wind-up Speed, making it essential for heavy attack builds. You can find more details on the Amalgam Organ Shatter Wiki Gladiator Might