This fits blacks desire for power, sacrificing cards in hand or creatures in play for a chance to grasp something powerful and profane
Add to that The Circle of Loyalty and Knights Charge also coming to us last Fall, this Syr Cadian is going to be the push for me to build Knight tribal that Aryel, Knight of Windgrace couldnt be
If you do get them, it does 20 damage to each of your opponents benched Pokemon
I do not have Pact of Negation in my cube presently however its value rapidly increases as the number of suitable archetypes for it increases and with cube design being as diverse as it is you can easily include more of those archetypes from one of a few different approaches
Now, this may be a shock to some, but back in the early days of Magic, flavor text was pulled from many places
"Are there needs for upcoming sets that we might be able to address in the current set?" For the upcoming plane Bloomburrow, a world full of walking, talking, sorcery and sword fighting animals, there was: players needed to be able to make animal-themed decks