Free Agent - NA
Anything below A tier is a throw pick, and unless you are really good at any of the champs in A+ to A don't pick them in ranked.
ss
First-pick or ban these champs. If you don't then you're in placements.
s+
These are all worthy first picks or bans, and you should see all of them picked or banned except for Atlas. The reason for Atlas not being picked or banned more often is because he is a relatively new champion and hasn't quite settled into the meta yet.
s
These champs are standard picks to fill your team comp, but they are rarely ban worthy.
s-
If you don't get Jenos or if your team won't benefit from having his damage amp, (rare but still happens) then these are the healers to pick. Keep in mind Furia and Ying have been rising in viability, while Mal 'Damba has seen a fall in viability due to his high skill ceiling. Never necessary to ban them.
a+
These champs have a very high skill ceiling, so in the right hands they can be great, but if you aren't good with them don't play them. Willo and Sha Lin have been seeing a rise in viability, while Bomb King has seen a fall.
a
These champs are pretty good but are too situational to be picked in most ranked games.
a-
These champs are just under-powered for the most part, but they also are all very situational or have issues that make them not very viable.
b
Zhin is better than all of the champs below C but hes still pretty bad.
c
All of these champs have several problems that make them non-viable in ranked, they may be able to stomp a bot team but that's about it.
d
Moji