Probably has something to do with the sphere rolling from place to place. Moonbeam can be moved by functionally recasting it. The sphere rolls around. Not sure they have a mechanical way in the game to have it function as anything other than a familiar type summon and be able to move as it should. I suppose having it auto-despawn when combat ends would be a possible solution to this issue. Or as folks keep asking for, give us a way to manually break concentration on spells when we want to. Or both.
It shouldn't automatically roll up to the team, and hopefully we'll get the option to manually break concentration.
