Well depends on which role you want to play. If you don't normally play ADC I don't think I'd recommend Vayne since she's pretty hard to play and isn't in a great position right now.
Fizz has a hard time early game but is otherwise not too hard to play and can be quite rewarding.
I'm not too sure about Rengar but he's not too good atm like Vayne.
Fizz has a hard time early game but is otherwise not too hard to play and can be quite rewarding.
I'm not too sure about Rengar but he's not too good atm like Vayne.