Your team is feeding in every lane, what do you do?
This isn't a gripe thread.... I honestly want positive feedback as to what to do (in possibly all roles). I have literally gone like 10 games recently where every lane outside my own is getting crushed and roaming to help doesn't work because they refuse to cooperate. If I roam too much I lose out on gold, exp, and possibly my tower... but if I DON'T roam when I am doing well then I just leave my team to their fate. I feel like I have reached a point in learning the game where I need that next step when teamwork isn't an option anymore. Any constructive insight is appreciated.
EDIT- Some things I would like to add
- Tried roaming, but at my current rank my team mates just watch me 1 vs 1 instead of helping... even with proper warning and they have the hp/mana to help
- Tried just to solo carry, but it is extremely difficult to 1 vs 5 an entire team's DPS, CC, and map coverage. It's too much when your team is behind on top of poor decisions being made leaving you at a 4 vs 5 or less before you even think about jumping on someone.
- Split pushing might be the closest I have gotten... but my team can't hold out most of the time when I am the only one ahead. Usually just makes people mad and the enemy team just pushes harder than I can push alone.
- Lastly, when I am a support I will usually just give up on my ADC and protect/support whoever is actually carrying... and that works really well. This doesn't work when no one is winning lane though....
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and a health pot. Make sure you grab yellow trinket. Mute everyone with /mute all, since no one knows how to play this fucking game.
->Shiv
->Infinity Edge
. Upgrade your trinket at level 9. If you kept hitting minions you'll have enough gold.
One Gnar ult will change the entire fight. Even behind anyone can just slap enemys while they are stunned against a wall.
Your Passive plus your ult if used right in a teamfight is amazing way to split the team up and keep them stunned with your great dmg.
Not any stuns but just stack q for an hour and get tanky with a 
is great.
Build AP Health and make sure you get a good ult, then just q w e spam them, if your doing well in cs. it wont matter how fed the katarina or vayne is if they are dead,
King of annoying cc
Not teamfighting, but great 1v1 split pushing
Basically the same as 
I don't think I need to explain
Now he is not cc, but he has 3 aoe spells, and they hurt. Like really hurt you can easily drop a team of squish half health 1v5 so if you have some people to body block, not that hard to win the fight
Win lane then heal everyone :D
Just snowball like crazy
Decent cc with ult plus e slow, percent a percent shred, lots of wards and execute damage
Just get ahead in a few kills and kill people with rockets
great midlaner is a bit hard to get to learn but you can basically 100-0 anyone even if they are fed with the right setup
gives a good amount of health and also an insane synergy with his kit. so that yi is really fed? ignite E/W ult and he is dead.... unless he went full tank
is my personal to go to champ his ult is great in making fed people weak and that is great with devourer, bork and tanky from there on out he is a great pusher and team fighter or clean up champ.
get to know this guy use same runes and masteries as you would with nasus. he is great with farm adc that can hyperscale into late game.
land hooks profit.
if you know the way of nunu support... lets just say the enemy will hate you.
good at taking turrets and thus great at winning games all of these have great team comp ults that can give your team the morale boost they need to pick up the pace and try again.
