Dragoncaller Magician

Once per turn: You can target 1 face-up monster on the field; it becomes Dragon-Type until the end of your opponent's turn (even if this card leaves the field).

Once per turn: You can make this card become Dragon-Type until the end of this turn. A monster that was Fusion, Synchro, or Xyz Summoned using this card on the field as Material gains this effect.
●If this card battles a Dragon-Type monster, this card's ATK becomes double its original ATK during the Damage Step only.