Doomsday: My Hammer Can Strengthen Everything

You wake up with a hammer! Yes, I just woke up like a hammer! Can't you see that big hammer? Wang Dachui traveled through the apocalypse, and the original owner of the cannon fodder awakened a hammer, but he was hit by a tank zombie before he could even enjoy it. The awakening test couldn't detect the hammer at all. Wang Dachui was forced to put it on the shelf and rushed to the battlefield to fight zombies. He finally figured out the true function of the hammer...