With a future update, I don't see why I shouldn't include that. I also want to remove the dependency of Spell__Expired, which I plan to do in the next update. I want to wait until I have at least 1 or 2 more changes before I publish an update, as I want to make as few separate updates as possible.
I had an AllowSelf option originally, but removed it as AllowAllies is able to add him as it is. If the user doesn't want the caster but has AllowAllies set to true, then it's easy to just remove him from the group before picking.
I love your skins. If it's possible can you make a Doomsday, Spawn, Venom, Spider-man, Darkseid, some Lanterns (preferably sinestro, green, and red lanterns), Dr. Fate, Etrigan, Ghostrider, Joker, Captain America, some X-men, Punisher, Deadpool, Lobo, Devilman, The Vision, Martian Man-Hunter, Green Arrow, The Flash, Moon Knight, Sentry, Bane, Thanos, Apocolypse, Dr. Strange, Silver Surfer, Shazaam, Black Adam, Spider-Woman, Beta Ray Bill, Swamp-Thing, Iron Man, Scarlet Witch, and Deathstroke.
Well thats all I can think of for now, these are just suggestions, I hope you like them.