The strongest picks right now for bot. (Draven is no doubt tier 1, but is best played in Plat+ due to him being a difficult adc to play.) lower elo players you have been warned.
Still strong picks.
Can be strong based on the situation and or team comp. Also includes champions that are usually always solid and in a good spot most of the time and don't get touched every patch. (Kindred bot is actually decent and pretty viable now.)
Not strong right now, or nerfed to hell.
Yea, you shouldn't be playing these. Save Urgot Riot! Can't wait for update :)