6.10 Malzahar
People who played against Malzahar hated his new W because they'd swarm and chunk their health.
People who played Malzahar disliked his new W for being unreliable damage.
Many think power should go back to his other spells (Or at least Q and E) rather than W.
And what was Meddler's solution?
"Now that the 7.9 patch has been locked (we're in the final testing period, so can't put any more changes into it) we've started looking at 7.10 changes. It's likely there'll be a fair bit of followup to mid-season needed, so it's hard to speak definitively about what will be in 7.10, work we're looking at though includes:
Malz - W changes to make his solo laning more rewarding, reduce unhealthy impact of his support play (lack of good counterplay especially)"
Sigh...