Mirror Summoner

[I Hate Snatch Steal]

 

During your opponent's Main Phase: you can discard this card, then target 1 fusion, synchro, or xyz monster your opponent controls; special summon 1 monster from your extra deck with the same level (if fusion or synchro) or same rank (if xyz) and if you summon an xyz monster this way, attach the top 2 cards of your graveyard to it as xyz materials. Your opponent cannot target that monster with card effects during the turn it is summoned.

 

OCG reference:

http://yugioh.wikia.com/wiki/Number_16