Because this data doesn’t exist anywhere yet, I put a request in earlier today for the stats of a few fully upgraded Level III Monster Perks. The only other way to ever know this info at this point would be to spend the keys to max them out, so big thanks to Lord and Squirrel for taking the time and sparing me horrific buyers remorse.
Evolved Recovery @ Max Rank: 17% Cooldown Reduction
Unkillable @ Max Rank; 60% Armor Regeneration and 12% Damage Reduction
Unending Endurance @ Max Rank; 17% Traversal Regeneration