New Masteries (Not entirely new, just more of them)
Ferocity- Slaughter Deal 7% increased damage to neutral monsters and 3.5% increased damage to enemy minions (This goes with Feast and Double Edged Sword)
This is to add additional help for Junglers in clearing the jungle since the current Masteries in this Tier don't help too much with Jungling besides Feast, but that doesn't help directly with killing monsters for those that already don't have a problem
Ferocity- Soul Reaper Killing a large monster grants you +0.75% cool down reduction, up to a 10% cool down reduction (This goes with Bounty Hunter and Oppressor)
Another Jungling mastery for this tree. Gives more power to more middle and late game focused Mage junglers by granting them more cool down reduction. Will help the likes of Fiddlesticks and Warwick who like some CDR, but usually need to buy other items first
Cunning- Scout Telescope Increases your vision radius by 22.5% (This goes with Bandit and Dangerous Game)
Another Support mastery on this row for Supports who don't want the extra gold or dont need it for whatever reason. More vision radius will allow you to scout areas without your enemy knowing without their own proper warding
Resolve- Ghost Armor While in combat with an enemy champion, ignore unit collision (This goes with Explorer and Tough Skin)
For the champions who don't really need more roaming speed or tankiness, this will get rid of that horrible minion blocking that makes many champions at an innate disadvantage in lane
Resolve- Bulwark +15% Damage Reduction while out of combat, +10% Size while in combat (This goes with Insight AND Perseverance)
This one is for Tanks that more want to just absorb a bunch of damage instead of regenerate a bunch of heath in lane or want the reduced cool down on SSs. The way this works is the +15% Damage Reduction will only work against the first instance of damage that hits you after being out of combat and then you will gain size in order to absorb the rest of the onslaught that will be coming for whoever is behind you, as well as possibly "increasing" your basic attack range