Champions that need diversity, categorized!!!
Starting off with top lane, which are the "Trappers", mainly ap based and do best by leading people around into their traps Teemo Singed Swain Barrel plank Swain
Still top, the "Berserkers", those which can safely tower dive and grow stronger with low hp Tryndamere Olaf pantheon renekton Aatrox
Now, to the jungle, the "shadows", who assassinate from stealth and are gank-oriented Shaco Evelynn Kha zix Rengar
The "Strikers", champs that can reliably delete multiple targets, but must do so one at a time Master yi Warwick Udyr Volibear
The "controllers", the ones who, if played well, can completely change what the enemy will do Kindred Shen Malphite Amumu Lee sin Nocturne Zac
Mid lane, the "safety zone" champions, they make you stay out of their range, and often play passively Karthus Lux Anivia Veigar Gragas Malzahar
The "Howitzers", the champions who can literally win a fight far before it starts. Xerath Ziggs Varus Nidalee
The "manipulators", high skill cap champs with interactive features in their kits Syndra Lulu Orianna Cassiopeia Viktor Azir
The "explosives", they have Instant burst damage, but must use everything, lending to severe high points and useless low points Katarina Annie
(Dont know bot lane all that well)