Hi, was just a quick brew i did since i haven't got some scaldings etc. . So i wanted to make it some kind of "Budget" (although i included Snappys).
Pentad Prism seems like a pretty good idea, but i could easily also add some talisman. I chose to pick a playset of titans since i can always play them on an empty board, which isnt possible with negation, although u are right with the slaugther pact.
Honestly said, if i wanted to splash in some color i would go for white since i could have gideon and angels grace, against control to not lose with the pacts. Btw i got the missing pacts in my incomplete Sideboard, to search out the color my opponent is missing with tolarian west.
thanks for your question, im always up for a discussion, let me hear your thoughts, appreciate it