black knight cards mtg First strike (This creature deals combat damage before creatures without first strike.) Protection from white (This creature cant be blocked Black Knight (IE) - International

This plus Ethereal Absolution kills all your foes' creatures upon entering, while Night of Souls' Betrayal kills all creatures upon entering

In the end, Slaughter Pact, one copy of Pact of Negation, and one Sleight of Hand get the axe for three copies of the new mythic

If you have a way to intentionally ping your own creatures, Silverclad Ferocidons can clear out a lot of the board for you

as well as non-combat reuse of comes-into-play creatures (Jilt your own Flametongue Kavu, perhaps?) Barrin's Spite was a rare in this block and served generally the same purpose as Jilt, except that Jilt was an instant, and Jilt allowed you to unsummon your own creature if need be