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Attract now works on allies in Double and Triple Battles. Instead of the usual effect, using it will make that ally take all hits directed to the Attract user until one of the two are switched out or KO'd.
If you try to use it on both allies in a Triple Battle at the same time, the two infatuated Pokemon will ignore commands and instead attack each other until one is switched out or KO'd.
If for some reason the ally hit with Attract is holding a Destiny Knot, the two infatuated Pokemon will miss all their turns until one is switched out or KO'd.