Blitz and Illaoi can miss as much as they want but the moment they connect, they win.
I'm just astonished that Illaoi's test of spirit mana cost is being lowered. She's even worse than Blitzcrank with the whole "spam the ability as much as you want with no punishment, but once you hit it you pretty much get a kill". Illaoi's mana costs are way too low as is, they should be increased, but in the PBE they are being decreased. She's a juggernaut that wins trades with nearly everyone if you get within her range, yet she's allowed to poke nonstop with her Q and E. I just can't fathom why these changes are being considered?