I think you should make a place where you can test spells and only you can be in the battle or you can walk up to the battle and the host of the battle gets a message saying so and so wants to join the battle they can say yes or no because i was in a battle i was going to use a minion that was on a treasure card that cost me over one thousand gold and a fourth person joined so my card was a waste of gold and mana i was mad so please think about this message please make a place like that
