The Knight and The Wolf

Double-Strike, Menace, Vigilance, Shroud (This creature cannot be the target of spells or abilities)
If you have control of both "Sif, Guardian of The
Grave" and "Artorias, The Abysswalker" you may
exile them, and if you do play this card without
paying its Mana cost.
While this card is on the field cards cost 0 Mana
to Equip to Creature Cards.
While this creature is on the field creatures your
opponant controls cannot be unblockable.