Arts isn't as interesting as Quick for this since many more Arts servants can loop with Black Grail in a standard setup, but I picked some of my Arts servants with the highest damage potential for some ridiculous damage numbers. Probably won't do more Arts servants unless anyone wants to see some specific ones. SE/Power Mods always active here.
Summer Melusine (NP1, single enemy):
Summer Kiara (NP1, single enemy):
Summer Kama (NP1, single enemy):
Summer Valks:
