Surprise Fusion

Target 1 face-up monster you control, then declare 1 Monster Type and 1 Attribute; that monster becomes that Type and Attribute, then you can Fusion Summon 1 Fusion Monster from your Extra Deck, using monsters you control, including that monster. You can banish this card from your GY; Tribute 1 Fusion Monster, and if you do, Special Summon 2 "Surprise Tokens" (Spellcaster/DARK/ATK 0/DEF 0) with the same Level as the Tributed monster had on the field. You can only use this effect of "Surprise Fusion" once per turn.