Found a Loop

[EmeraldTiger]

I am not sure where to post this.
Main:
4 Doubling Season
20 Forest
4 Leyline of Vitality
4 Life and Limb
4 Mycoloth
2 Sporemound
2 Sporesower Thallid
2 Sporoloth Ancient
4 Sprout
4 Sprout Swarm
3 Thallid
2 Thallid Shell-Dweller
3 Utopia Mycon
2 Vitaspore Thallid

Sideboard:
4 Courser of Kruphix
4 Lifegift
4 Scatter the Seeds

I made the deck above, and I discovered an unexpected interaction between Sporemound and Life and Limb. It created a loop that I could not break out of without conceding the game. A means to end such situations may be needed.

[Fizanko]

Yes i agree that it is a problem, there are actually rules in MTG that deal with that case :
http://magiccards.info/rule/104-ending-the-game.html

104.4b If a game that’s not using the limited range of influence option (including a two-player game) somehow enters a “loop” of mandatory actions, repeating a sequence of events with no way to stop, the game is a draw. Loops that contain an optional action don’t result in a draw.

That's how it should be, if an infinite combo that can't be stopped by anyone like Sporemound and Life and Limb is going on, Forge should end with an automatic draw as by the rules, and not a concede.
Maybe a "make draw" button should be there too as concede is for admitting loss, not draw