Bronze elo
I would just like to say I think it is impossible to climb out of bronze if you are a silver player at best. I can see the smurf people who can do it, who play at higher elos and can just carry games. But when you are a high silver at best player the bronze elo is impossible as far as I am concerned. The afks, inting, d/c, flaming, toxicity and etc make it impossible. High elo players climb out of this as they can carry an entire team, for those who are only slightly better how do you get out of this? Honestly its getting old. Last 3 games are a d/c right away, flamer who inted entire game, and an afk. I suffer 3 losses, cant carry a 4on5 as I am not a plat smurfer and I am suppose to suffer for this? Is there anyway out? Or is this the downside to an unregulated game at this level? Just taking the fun out of the game lately.

your ult heals you a fair bit between the Ults heal and the items heal from mana consumption, and mana regain from damage conversion. Unless the enemy can inflict grievous wounds you should be able to survive any gank and out sustain your opponent.
and then tanky (I start with Doran's Ring)
and whatever else would help
or maybe
(Which might be even better since modification.)