So I'm going to do provisionals this summer when I hopefully get better, what are some good bans? I'm thinking Shyvana and Sejuani because they are godly and get fed every game I play. I don't want to ban all mid laners or all junglers. Anyways, anyone have any tips?
Simplicate1 votesPersonally I like to ban Katarina right off the bat unless I'm first pick and I have the chance to pick her up. She is really strong and carries games even if she loses lane so she is a priority ban. Nex would be Sejuani as you said and then lastly would be someone like Annie, Nasus, or Blitz. Also Blitz is one of those pick him up or just ban him straight off.
JerrBear71 votesI was thinking of trying to be Katarina for provisionals because I practically never lose as her unless my mid laner roams and gets more fed than me. Then again I'm not too good with mirror matchups at Katarina (partially because of the junglers).
colesy1 votesyou can't play the same champion in ranked as someone else so you'll never have a katarina mirror
SlytherMinn1 votesBan jinx or other popular low elo champs.
JerrBear71 votesBan jinx or other popular low elo champs.
That's my point, I have no idea of any popular low elo champs...
SlytherMinn1 votesSpectate low elo games to find out?
JerrBear71 votesAha! I just found a popular low champs chart at Lolking! http://www.lolking.net/charts?region=na&type=champion-popularity&range=weekly&map=sr&queue=1x1&league=bronze
Thank you!
AwesomeChad1 voteshttp://www.lolking.net/charts?region=na&type=champion-winrate&range=monthly&map=sr&queue=1x1&league=bronze try this one too. its set to highest win rate champions. You can use both to determine which sets of bans u want to prioritize.
For me personally, I ban out sejuani, gragas, hecarim, nunu, nautilus, vladmir (in this specific order) These are my priority bans depending on what the enemy already has banned for diamond 3 elo ranked since i am an ADC main.
Commit Sudoku1 votes
probably best for low elo
Leti the Yeti1 votesI ban champs that require some shred of intelligence to beat
they are way more terrifying than OP champs
Hasztalan21 votes 
Raemnant1 votesI dont trust anyone in low elo to deal with Nasus, Katarina, Leblanc, Fizz, or Blitzcrank
colesy1 voteslow elo (including my own) don't know to deal with zed or katarina. sejuani is backbreaking to play against too.
i mean you've got annoying champions like cho'gath, hecarim and leblanc but they either drop off at certain points or require a modicum of skill to play whereas any idiot can point and click on katarina or ult someone on zed and then hit 3 q's because people don't bother trying to dodge it.
Axests1 votesgo classic, blitz (cuz low elo players can't dodge a hook) katarina (cuz regardless of skill low elo will feed her) sej (cuz tank meta) if the other side bans any of these then drop a hate ban on champs you dislike