Scion of the Ur-Dragon
Time Spiral — rare
Legendary Creature — Dragon Avatar
Scion of the Ur-Dragon rulings:
2006-09-25: Removing the other Dragon card from your graveyard has no effect on Scion of the Ur-Dragon.
2006-09-25: When Scion of the Ur-Dragon becomes a copy of another Dragon, it loses its copy ability for the rest of the turn.