My champion pool is basically nonexistent. Played pretty much nothing but Swain last season. Here are the champions I'd feel comfortable playing in ranked:
Top: Nasus (I don't play top often but I get fed most games I play the cane so I go with him when forced)
Jungle: Vi, Hecarim
Mid: Swain, Vel'Koz, Ziggs
ADC: Corki, Graves, Jinx
Support: Lulu, Karma
I've been playing a new champion each day so I'm learning new ones.
Top: Nasus (I don't play top often but I get fed most games I play the cane so I go with him when forced)
Jungle: Vi, Hecarim
Mid: Swain, Vel'Koz, Ziggs
ADC: Corki, Graves, Jinx
Support: Lulu, Karma
I've been playing a new champion each day so I'm learning new ones.