This might be a strong card if you can keep turning your opponents creatures into cannon fodder
Within the wilds of Theros there are civilizations of centaurs and satyrs, hulking hydras, sphinxes, dragons, sirens, manticores, cyclopes, giants, and pegasi
(6/10/2022) If you control a Background that grants an ability to commander creatures you own, and you own more than one commander creature, each of them will have that ability.
While I realize theres likely not enough goblin support to make Krenko consistent enough to the point of being broken, and drafting a singular color in a set like CMM is likely not smart, Krenko and Purphoros being in the command zone together seems like something you really dont want to happen
Wizards of the Coast dropped a preview of the four Doctor Who Commander Magic: The Gathering preconstructed decks at MagicCon Minneapolis, featuring every Doctor from the series along with companions and villains