Top Lane
Shen is my main and Aatrox is my second. Both are blind pickable. Fiora for split/carry. Mord for AP. Sett for engage.
Jungle
Nunu is gank heavy and fun. Karthus with the global presence will always be somewhat useful. Kha for AD.
Mid
Not my main role so want to provide utility as much as possible. Galio and Panth do so. They are also similar to my main (Shen) with their semi global presence. Ekko is relatively easy to understand and gives me a more carry oriented option. Xerath was my first champ I played mid and is my pocket pick into specific team comps.
ADC
Trist is easy and safe. Can carry and scales well.
Support
 Pulled from other roles so I don't have to learn new champs when auto filled.
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Goals
Tier Name
Solid Top and Mid picks that I can play at or around averagely. Just don't fit in with my pool/meta at the moment.
Well i do the same , i play the weirdest champs as support because i'm comfortable with them and they are ............... fun .
As for sett , yes he's good especially in toplane using the mathematically correct sett build but i don't advise anyone to build it against too many ranged , high mobility champs .
Cheers.