Dragon of the Moon-Clan

Flying.
Delirium - At the beginning of your upkeep, if there is four or more card types in your graveyard, add {g}{g} to your mana pool.
When Dragon of the Moon-Clan dies, you may pay {4}{g}{g}. If you do, choose one:
- Regenerate Dragon of the Moon-Clan.
- Return target creature from your graveyard to your hand.