We should make a stat called "Mastery" like Dawngate had.

Dawngate, RIP, had a Stat that was like Crit Chance, except for abilities (if my memories aren't wrong). It allowed Spells and Abilites to do double damage.

Instead of just implementing "Double damage Spell chance" or SpellCrit, we could design/redesign some champs that included more of things like Soraka, Anivia, and Karthus have for some examples have for their abilities.

For example (a possibly bad one) , say if Syndra was able to deliver a full Q, W, E combo that the E damage would be doubled/increased like an Isolated Karthus Q. Spell Mastery could amp the damage of SpellCrits like an IE, but not have a random chance to SpellCrit. Requirements would have to be met for it to SpellCrit, and Mastery would amp that damage.

Idk, I just had the idea, with all that "Randuin lowers spell crit damage" going around.