Thresh
Q - Lasso, maybe hoots and hollers when he snags someone
w - Throws his lantern out like the rootinest tootinest cowbo in the wild wild west.
E - Yells "YEE HAWWW" as he herds his cattle back into the corral.
R - like you said, the corral, self explanitory.
Passive - Gotta replace the souls with something cowboy'y, maybe..cows?
Sion
Q - smash the ground with his torch to light the OLYMPIC FLAME
W - Spins a hammer like hammer toss or something which protects him, then he can release it and do area damage! (It makes sense)
E - Throw a javelin like, wapow! Knocking minions like, OOF!
R - Runs down lane, occasionally hurdling over miinions, then smashing to a stop. OR! Runs down lane and when he nears the end of his journey he jumps (like running long jump) and smashes into the ground, but if he doesn't make it all the way he just trips and falls on his face.
Passive - After dying goes into a ROID RAGE or something more PG, say no to #drugs.
Rito pls this is obvious money making content.