Xar-na'Saeph, Lust Incarnate

Incarnation {4}{p/u} (If you cast this card for its incarnation cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)
All creatures able to block Xar-na'Saeph,
Lust Incarnate or enchanted creature do so.
Enchanted creature gets +2/+2.