What if Zhonya's was changed to work more like a spellshield

Take 's W or 's E into consideration. Now instead of one ability (and the buff you recieve for blocking something) you go into a Zhonya's state for that active time. Basically we could make the time shorter so some champions can't just pop ult or something and just because invulnerable for 2.5 seconds (a pretty absurd time if you consider how much damage Fiddle or Kennen can do with their ults if you can't get out quick. So if the enemy support also stuns you (or Fiddle fears before or Kennen passive stuns) you aren't just boned without being able to kill the damage source. What it instead the item gave like a .5 second stasis (buff the stats if people bitch, but I honestly feel like Zhonya's is op as hell in some cases). A short stasis would still be able to block kill damage or ult, but it can't be used as a "here take all this free damage while I'm invincible."

The reason I feel it would still work is because if you think about, 2.5 seconds is a LONG time in a real-time game. Anyone who played Halo: Reach could agree that armor lock was completely overpowered. Your teammate strolls along while you're invulnerable and the enemy is just screwed since they just fought you. 2.5 seconds can allow so much for some champions. If has her ult on you for a second before she uses there's still a good chance she'll stun you. However if you can focus her down to kill her you eliminate the threat, even if Zhonya's is nerfed to a shorter time (.5 sec for example) she can still use that to escape a good amount of damage (enough to survive) to get her ultimate finished.

Think of all the times you've not been able to kill someone or have died because they just go invulnerable for 2.5 seconds and their team comes in or they get a cooldown. And this nerf still would give the item its niche of "let me dodge that nuke real quick." It would still be able to avoid Zed's ultimate pop (unless he kills you without the pop, then I don't think Zhonya's would've save you). And it also eliminates the abilities for glass cannons to rush into a 1v5 do damage and then sit for a couple seconds while their team comes in behind them.