So about 75% of Collector Boosters will have a foil rare of some kind in this slot
The cons is that blue has a narrow window during which it can do so
Nine-Fingers Keene Most of the Sultai commanders so far care about the graveyard to some degree, but Nine-Fingers Keene gives you a completely new, niche theme: Sultai gates
Despite that, hes got an ability that makes him incredibly powerful
Nadier, Agent of the Duskenel Nadier, Agent of the Duskenel creates an interesting loop where tokens you make and sacrifice or kill in combat buff it, and when this black commander leaves, you get to make a lot of tokens
The price used is the cheapest market average of all Boros Charms copies, which currently originates from Gatecrash