A decent blocker and repeatable removal for small or damaged creatures
That made good answers hard to come by while the Sliver deck was functioning as intended, as winning combats was hard, winning them quickly without trample was even harder, and removal was temporary
UPDATE (March 2022): Not much to update really, so I edited the tags to work with the new library used on this blog
With very little interaction on the opponent's turn, quickplay spells like Book of Moon and Enemy Controller see action as pseudo traps
The market is liquid and getting more visible to buyers, which cuts both ways: it is easier to sell, and harder to overcharge on something a buyer can price-check in seconds
The four Partner-Survivor commanders synergize nicely into Jund colors, and you can pick any two of them to have fun with