Guardians of the Valley

Defender, Boneyard -- as long as this card is in your graveyard, during another players battle step, if he/she attacks you, you may pay
{2}{g}{g}. Create X copys of this card where X is
the number of creatures attacking you, exile those copys and this card during the next end step.
"to those who dare enter the valley of lost souls, do so unarmed and in peace or you may never return."-old sorcerers warning