Partly updated for Enshrouded 1.0— 1.0: the unlock cost; the rest is pre-1.0 wiki data

Power Parry
Enemy Stun Bar gain from parries is increased by 30%.
Where Power Parry sits on the 1.0 tree
In the Core area. It touches a starting point, so it costs 1 point to reach.
Builds that use Power Parry
2 preset builds tagged POWER_PARRY — defining picks first, then ranked by tier (S → A → B).
- One-Handed WarriorWarrior
One-handed melee for damage: Warrior's Path and Slasher at full rank, Swift Blades and One-Handed Specialization, Power Parry and Heavy Handed to overpower, Merciless Attack, Opportunity and Breach to punish it, and Veteran with Battle Heal to heal on crits.
- Endgame MetaHybrid
Every one of the 212 points: two-handed Warrior (Barbarian's Path for the axe, Titan Edge for the greatsword, Slasher, Veteran, Relentless, Whirlwind Crescendo) in Heavy and Shiny Plates, Thunder and Wand Mastery for a shock wand, Blink, and the full Healer line. Pyromaniac is not on the 1.0 tree.
Related Survivor skills
Same archetype — likely candidates to slot next to Power Parry in a build.
Fisherman's Resolve1pIncreases your Fishing Endurance by 30%. Allows for extended battles with hooked fish.
Lumberjack1pFelling axes do 30% more damage against wooden objects including trees.
Mason1pThe Pickaxe deals 30% more damage against stone objects, including resource veins.
Opportunity1pValues in the 1.0 files: 40% per rank, 3 ranks.
Quality Gear1pValues in the 1.0 files: 20%.
Saviour1pYou only need 3 instead of 6 seconds to revive an ally.
Well Rested1pThe base duration for the Rested buff is increased by 5 Minutes. Increase the Comfort in your home to further increase the duration.
Backstab Damage2pIncrease the damage you deal from behind by 25%.
Sources: game files 1.0 + Keen Games 1.0 patch notes (changelog, combat changes) for the unlock cost; enshrouded.wiki.gg (pre-1.0) for the description and effects.