Timeless Dragon 
Creature — Dragon
Flying
Plainscycling 
(, Discard this card: Search your library for a Plains card, reveal it, put it into your hand, then shuffle.)
Eternalize (, Exile this card from your graveyard: Create a token that's a copy of it, except it's a 4/4 black Zombie Dragon with no mana cost. Eternalize only as a sorcery.)
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL