Please change concession rules so that players may only concede at sorcery speed. If you will not, please remove the daily challenge "Attack with 30 creatures".

Being that bad manners and un-sportsman-like behavior seems overwhelmingly to be the most popular way to play this game on Arena, these behaviors need to be moderated and limited in the back end. Because bad manners, un-sportsman-like behavior, griefing and bullying is frowned upon in this venue, is it not? Sometimes I have cause to wonder.

9 out of 10 times I build a board that is able to attack without losing the game, the opponent concedes at instant speed in response. This causes a situation where the "Attack with 30 creatures" challenge becomes un-fun at best and a huge waste of time at worst.

While attempting to maintain a positive attitude regarding Wizards intentions when making the game, I ask you to fix this problem, because you want to make a game that is fun, right? This situation is not fun and changing the situation will only negatively result in bad mannered poor sportsman being inconvenienced, while the positive effect will be giving your "Attack with 30 creatures" challenge viability.

You may counter my argument with the point that instant speed concession is necessary so players do not have to sit through the machinations of an infinite combo. I would ask you to limit the game actions in infinite combos, much the way you have with the token generation limit.

Thanks!