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I made this challenge code, tell me if it works for you (basically just pokebilities + 3 other battlerules + pokebilities bans removed)
/chall gen8pokebilities,@@@scalemonsmod,alphabetcupmovelegality,categoryswapmod,!standardoms,+calyrexice,+calyrexshadow,+cinderace,+conkeldurr,+dracozolt,+eternatus