Essentially, The Soul Stone is two excellent cards rolled into one, and that's why it's going to be a hard-to-find staple of black EDH decks
Either way
3 Galea, Kindler Of Hope If youre looking for a commander that can get your Knights geared up and ready to go, look no further than Galea
Fires decks could have a terrible time with the Cloak when it was on something as simple as a River Boa even when it wasn't going on something even larger like Rith, the Awakener, but Saproling Burst and Blastoderm caused compatibility issues
The right deck, in this case, could be one of several options
Kristen is a lover of both Limited and Commander, and can most often be found championing the Boros Legion when called upon to sit down and shuffle up