If they do remove it one, they'd better add actually inexpensive items (like an Elixir or Trinket) that do provide a healing debuff and retune champs with a focus on healing accordingly.
Which is the cleaner and best long term option.
i mostly agree but it would be such a huge undertaking
like what do you buff in fizz if you remove grievous wounds? or ignite? how do you make mundo stoppable?
Like...
is it though? It's pretty easy to spot which champions would benefit greatly benefit from this.
Riot was able to give supports gold and retune every single support to start S4 with pretty good success. There was some shake out (e.g. Lulu going mid which may have happened anyways going by all the nerfs she ended up getting) but it worked out pretty well, and that was a bigger change frankly than removing grievous wounds.
It's not like you'd do this change in a vacuum. You run this internally, keep tabs on the presumed biggest offenders (Swain, Mundo, Aatrox, Vlad, Warwick, etc.) and put this on Live along with nerfs to those champions' sustain. From there you monitor things, keeping an eye on those "high priority" champions and also on champions who might end benefiting more than initially thought (Garen, Moakai, Irelia, Zac, Renekton, etc.)
I honestly think you could have all this shit ironed out in less than 4 months. Releasing this sort of change in the preseason basically means having it 90% solved by the time February the following year rolled around. I might have a skewed view because I don't really play any sustain-centric champions (unless Voli and Xin count, I guess) but 4 months of pain for a healthier game is something I'd definitely put up with.
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Frankly, grievous wounds is to Fizz as attack speed reduction was to Lee Sin - lots of hidden and difficult to quantify power. His passive is huge considering players' instinct is to immediately pop a potion when low after a trade. I always think the best place to hit problematic champs first is in their hidden power, removing grievous wounds is the best place to start on Fizz as far as I'm concerned.