Haunted Graveyard

Retrace (You may cast this card from your graveyard by discarding a land card as an additional cost to cast it.)

If an opponent attacked with 2 or more creatures this turn, Haunted Graveyard gains Flash, and you may pay {0} rather than pay it's mana cost.

Create two 1/1 white and black spirit creature tokens with Flying and Afterlife 1.