Harsher punishment for leaving game needed

I haven't played a game of Ascension where someone hasn't left. Now, in all fairness, I had a game where my controls simply wouldn't respond, and I was worried that the server had kicked me out, but it didn't, I got my control back, and finished the game without any incident. But there was a Nasus on in one of my games who, 30 seconds in said, "FINISH THE GAME, I NEED TO LEAVE, NOW!" Then he left about 15 minutes in. Yeah, we reported him, but apparently, the low-priority queue isn't enough of a deterrent for these people.

If there's a server issue for Ascension, then riot: FIX IT! If there isn't, we need to implement a zero tolerance policy for leavers in special game modes. A two-week ban followed by two-months and 30 games in low priority for all game modes seems like a good idea to me.