Forum:Synchros/XYZs that are negated, banished, can they be brought back?

So let's say you summon a Syncrho or XYZ monster, its summon is negated, so it goes to the graveyard. I know you cannot use Monster Reborn or the like to bring them back, since they never existed. However, what is they are removed from play after they are in the graveyard? Can a card like Leviair bring them back to the field through its effect, or are they still gone?

Dr Kain (talk • contribs) 01:18, March 17, 2012 (UTC)