You know what would be great for mages
A keystone that isn't ass.
What keystone do mages have? Thunderlords. That's literally it and even then it isn't optimal for most mages. AD champs get warlords (cause being manaless bullshit is never enough for Yasuo, Riot HAS to force him into the meta), fervor, thunderlords (this mastery was literally implemented to give Zed a way around armguard), and DFT (aka the Jhin only mastery with a side of Brand even though it's almost unnoticeable on Brand).
Delete stormraiders and give us an actual mastery. Course all of the keystones basically amount to do x more damage so I guess RIP keystone for mages dream.
with
3 shots the enemy ADC with 2 soldiers' AA and Q + Thunderlords proc.