The Winged Dragon of Ra

Proxy for "Emrakul, tha Aeons Torn"
The Winged Dragon of Ra can't be countered.
When you cast Ra take an extra turn after this
one.
Flying, protection from colored spells,
Annihilator 6
When Ra is put into a graveyard from anywhere,
its owner shuffles his or her graveyard into
his or her library.