Artorias the Abysswalker

Sacrifice a creature to grant Artorias the Abysswalker +1/+1. When another Abyssal creature or spell is played, Proliferate.
Unmatched with a greatsword and with the art of abysswalking, Artorias faced the might of the Abyss in Oolacile. Even he, a knight of Gwyn, was no match for the festering Dark.