Necroid Synchro

Banish 1 Tuner and up to 2 non-Tuner monsters from your Graveyard, and if you do, Special Summon 1 "Stardust" Synchro Monster from your Extra Deck whose Level equals the total Levels of those banished monsters, but it has its effects negated. (This Special Summon is treated as a Synchro Summon.)