Arsenal, The Holy Grail debuts as a limited time character

The Holy Grail. It sits at the ends of the world, ready to grant any wish. Should you reach it. A nameless hero endured countless trials to reach that sacred land. A place of crystalline clarity, far in the north. A young girl greeted the hero. Pale, fragile, not long for this world. Or so she seemed. "A visitor. It's been so long." The girl looks at the hero and smiles softly. "So, what will you wish for?"