According to what I've read in the rules, cards from the Standard legal expansions Return to Ravnica onward comprise of the Pioneer card pool. Not including supplemental products, from my understanding. So are cards from Commander Legends legal?
It seems that the answer should be "no" however, according to Gatherer Archelos, Lagoon Mystic is.
I've noticed that Dominaria United Commander cards appear to be Pioneer legal even though it's not listed as a legal set. Does anybody know what gives?
edit: just figured out Commander Legends is not legal, but it does appear that Dominaria United Commander is. Still, why?
It seems that the answer should be "no" however, according to Gatherer Archelos, Lagoon Mystic is.
I've noticed that Dominaria United Commander cards appear to be Pioneer legal even though it's not listed as a legal set. Does anybody know what gives?
edit: just figured out Commander Legends is not legal, but it does appear that Dominaria United Commander is. Still, why?
Looks like is a Gatherer bug with the DMC set. Not actually legal, just something that is apparently too much for WotC to fix for 2+ weeks.