Phantom Knights' Rank-Up-Magic Force

During the Main Phase: Banish 1 or more DARK monsters from your GY, then target 1 DARK Xyz Monster you control; Special Summon from your Extra Deck, 1 "The Phantom Knights", "Raidraptor", or "Xyz Dragon" Xyz Monster, whose Rank equals that of the targeted monster you control + the number of monsters banished, by using it as material, also for the rest of this turn after this card resolves, you cannot Special Summon monsters from the Extra Deck, except Xyz Monsters. (This is treated as an Xyz Summon. Transfer its materials to the Summoned monster.) You can only activate 1 "Phantom Knights' Rank-Up-Magic Force" per turn.