Hammer Still One-Shots in Actual Combat Situations.
Despite the announced 25% damage reduction, the Hammer still eliminates players in one hit in most real combat scenarios, since you almost never have 100% HP by the time you engage in a fight. In practice, this means the nerf hasn't changed the gameplay experience at all — one-shots are still happening. I'd suggest revisiting the balance to give players at least a minimal chance to react after the first hit.