in many ways, wither is more reliable than Equilibrium Strike, and Decisive Strike is deceptively powerful. you don't have to have them in your cool kid's club for those guys to still be quite strong.Ah yes, Irelia. She'll be top tier still. I don't put Garen and Nasus in the "cool kids club" due to no hard CC. I have seen some ridiculous damage output from Garen lately, though... I have a looming feeling that the changes to Jarmander will knock him down.
Mundo will continue to be an incredibly powerful sleeper in the meantime.