how do i win with an afk?

1) Never contribute to toxic chat. Instead of responding to MrTroll -"Bot lane you suck, GG" with Me -"It wasn't their fault jackass, you aren't doing so hot either" try a neutral or positive stance even when MrTroll is right, like Me -"Bot lane, play passive until we can gank them. MrTroll it's ok, we can make up for it if we keep playing, could you put a Pink in that bush there, their jungler keeps coming at you from there."

2) Keep trying, and use positive reinforcement to get your team on the right track. Don't ever tell your team they're doing bad, only tell them how to improve.

3) Reading MrTroll's toxic chat can put you on tilt. If he won't shut up, just mute him and ask him politely to make use of pings.

4) Always be aware that no matter how good you are, sometimes it is your fault; whether it be getting hard countered, or you are getting camped or facing against a superior opponent in lane. Take the advice you'd give others, and play safe.

If you didn't pick it up from the context, I feel that keeping the team positive is more important than a fighting strategy.

This question is as timeless as "what is the meaning of life?" Truth be told the best thing you can do is keep a level head. The enemy team usually makes overly aggressive plays when they know there is an afk so use anything like that to your advantage.

Play akali or ryze and you can win a game with 4 afks

People say im a troll for getting a Banner of Command after we have a leaver. You would be surprised though how effective it is when used in the right situation. That super tank minion pushes lanes like a beast.

arghh

so now i have a deliberate afk in the middle of the lane soaking up xp and farm

and letting the enemy yasuo engage on me with no retaliation what so ever

to "teach me a lesson"

blind norms suck