[Résolu] unearth et doppelganger

je caste un:
Renegade Doppelganger
Card type: Creature
Creature type: Shapeshifter
Power/Toughness:0/1
Casting cost: 1
Oracle text: Whenever another creature enters the battlefield under your control, you may have Renegade Doppelganger become a copy of that creature until end of turn. (If it does, it loses this ability for the rest of the turn.)

dans le meme tour, j'utilise l'unearth de:
Extractor Demon
Card type: Creature
Creature type: Demon
Power/Toughness:5/5
Casting cost: 4
Oracle text: Flying
Whenever another creature leaves the battlefield, you may have target player put the top two cards of his or her library into his or her graveyard.
Unearth 2B (2B: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

si le doppelganger copie le demon, peut il attaquer?

visiblement non:
http://www.mtgfrance.com/viewtopic.php?f=15&t=20584

As tu plus de deux cartes en main ?