more general scaling masteries for the resolve tree
lets start with tough skin. it feels like a placeholder. no one in his right mind is picking that mastery right now.
how about making it
tough skin:(t2) blocks 2% damage from single target spells and basic attacks
there should also be a more generalist t4 mastery that doesnt benefit a very specific bunch of champions, replacing the current perseverance. the way it scales off base health regeneration, its godlike on heimerdinger, while being useless on a lot of other champions (including certain fighters and tanks).
it cant be really considered a dedicated tank/fighter mastery, since the value for base health regen varies so heavily between individual champions, even though tanks tend to have high base health regen in general.
this mastery right now supports specific champions more than specific playstiles.
make it scale off of missing health, like ocean drake used to work.
perseverence(t4): regnerates 5% missing health every 10 seconds.
id also keep strength of the ages in the tree as a more generalist mastery, with some slight changes.
strength of the ages(keystone): you permanently gain 30 + 15/lvl health (300 max) gain 1% damage reduction for each enemy champion who has dealt damage to you within the last 4 seconds (maximum 5%).
the health bonus stacks slower and kicks in later, but its not as jungle specific and the secondary benefit is more useful for divers, juggernauts and engage tanks than the current one.
though engage tanks would probably still prefer colossus in combination with fearless for the large burst shield/resistances on hard engages.
which would make strength of the ages stronger in extrended fights against multiple opponents, and colossus stronger in short and violent fights against frontloaded burst.