(This card is always treated as an "Artmage" card.) Your activated "Medius" monsters' effects cannot be negated. If you have a "Power Patron" monster in your GY: You can banish 1 Fusion, Synchro, or Xyz Monster from your GY, and declare 1 "Ars Magna" Link Monster Card name that has not been declared for "Ars Magna Academic Arcane Apparition Acropolis" this turn; Special Summon that monster from your Extra Deck, but it cannot be used as Link Material.