Fantôme Charon, le Nocher des Enfers PGL2-FR005

If your opponent controls a monster and you control no monsters (excluding this card), you can target 1 Fusion Monster in your Graveyard, banish that target and this card from the field, and if you do, Special Summon 1 Dragon-Type Synchro Monster from your Extra Deck whose Level is equal to the combined Levels of those 2 monsters (original Levels, if face-down). You can only use this effect of "Charon, Ferryman of the Underworld" once per turn. You cannot Special Summon monsters (except Dragon-Type monsters) the turn you activate this effect.