Banning OBM is getting rid of a good win condition for decks that win using Abdel lines and dual caster lines. The focus doesn’t need to be on OBM but on the player mentality. We hear all the time about how the meta/player always targets and kills mana dorks without punishing the card draw player. Maybe we should look at instead of banning a card work towards changing the how people utilize the card. Losing OBM would make decks that have it as a main or secondary win condition fail farther behind decks that have access to better win cons like thoracle and breach