Wrecking Ball

The is, almost without a doubt, THE slowest weapon in the entire roster. Sometimes you commit to an attack only for an enemy or boss to move out of the way entirely and cause you to miss your shot. I understand that the whole archetype of Survival is slow and defensive, but the game is really designed for faster playstyles in general, so being slower than enemies can cause you to whiff some attacks altogether. I will admit, the damage from the final hit is amazing, but the journey there is not; you have to slog through the three incredibly sluggish hits before getting to the last one in the combo, and if you dodge roll or stop attacking for even a short amount of time, it will reset.
If you want ACTUAL information about this weapon (and a better wiki because its the official one) you can find it here. to whoever wrote this article: fuck you