Gavin Verhey: “Wait, what’s this?? Mardu Outrider is a card that has only ever existed on Arena. We snuck it and a couple others into MB2 though to really hit as many sets as possible! I wonder what other Arena-only cards might have made it in?”
Gavin Verhey: “Wait, what’s this?? Mardu Outrider is a card that has only ever existed on Arena. We snuck it and a couple others into MB2 though to really hit as many sets as possible! I wonder what other Arena-only cards might have made it in?”
I think only the usual Commander/Legacy/Vintage style formats
They’re only legal in the draft event you pull them in, and at the kitchen table.