"The Hell's Gatekey isnt a key at all, it's a weapon as well"

~Psychic Kyle

This weapon, which is crafted from two dark hearts, but can only be crafted by one of them, is the ultimate dark weapon. At first, it is incomplete due to the lack of darkness, but if more is plunged in, by the other dark heart who helped make the blade, the blade gets more added to it.

Once completed, the darkness must merge with it's original body if by any means of unlocking it's true power.

~Kyle