Efficient Repair

Efficient Repair
Skill Tree	Machine Master
Type	Passive Boost
Cost	1 2 (Level 2)
Prerequisite	Heavy Lifter or Lasting Override or Machine Health or Mounted Archer or Override Subroutines or Splitting Spike
Unlocks	Chain Burst Heavy Lifter Lasting Override Machine Health Mounted Archer Override Subroutines' Resonator Refill Splitting Spike

Efficient Repair is a learnable Machine Master skill in Horizon Forbidden West.

Use

This skill allows Aloy to repair damaged overriden machines at a lower Metal Shard cost, with level 4 costing no shards. The default rate of repair is 10 metal shards for every 12 HP recovered.

Level	Cost	Shard Cost (per 12 HP)
1	1	7
2	2	5
3	N/A	2
4	N/A	Free

Boosts

This skill is boosted by wearing the Tenakth Dragoon outfit.

Consuming Spikestalk Shells boosts the skill by 3 levels.

Horizon Forbidden West Skills
Hunter
Active Skills	Workbench Expert - Glide TargetingBS - Machine Grapple StrikeBS
Passive Boosts	Ammo Expert - Concentration+ - Concentration Regen - Deep Concentration - Heavy Weapon+ - Stamina Regen - Valor Surge Master - Weapon Stamina+
Weapon Techniques	High Volley - Knockdown Shot - Spread Blast - Sustained Blast - Triple Notch - Ultra Shot
Valor Surges	Ranged Master - Powershots - Hunter's MarkBS
Infiltrator
Active Skills	Sharpshot ExpertBS - Stealth ResonatorBS
Passive Boosts	Low Profile - Quiet Movement - Quiet Spear - Silent Strike+ - Silent Strike Gain - Silent Strike Heal - Smoke Bomb Capacity - Stealth Ranged+ - Stealth Tear+
Weapon Techniques	Braced Shot - Double Notch - Focused Shot
Valor Surges	Radial Blast - Stealth Stalker - Berserk BlastBS
Machine Master
Active Skills	Override Subroutines - Flying Grapple LaunchBS - Resonator RefillBS
Passive Boosts	Efficient Repair - Heavy Lifter - Lasting Override - Machine Damage - Machine Elemental+ - Machine Health - Mounted Archer - Mounted Defense
Weapon Techniques	Propelled Spike - Spike Trap - Splitting Spike
Valor Surges	Chain Burst - Part Breaker - Override OverdriveBS
Survivor
Active Skills	Plant Forager - Low Health StaminaBS - Shield DropBS
Passive Boosts	Low Health Defense - Low Health Melee - Low Health Ranged - Low Health Regen - Medicine Capacity - Potent Medicine - Potion Proficiency - Valor on Impact
Weapon Techniques	Bouncing Bombs - Burst Dodge - Power Shredder - Shredder Mine - Sticky Bomb - Triple Shredder
Valor Surges	Overshield - Toughened - Defy DeathBS
Trapper
Active Skills	Ropecaster ExpertBS - Smoke Bomb HealBS
Passive Boosts	Food Duration - Nimble Crafter - Quick Trapper - Resilient Trapper - Skilled Salvager - Trap Limit
Weapon Techniques	Penetrating Rope - Quick Wire
Valor Surges	Elemental Fury - Trap Specialist - Trap MinesBS
Warrior
Active Skills	Aerial Slash/Jump-Off - Block Breaker - Energy Surge - Halfmoon Slash - Nora Warrior - Resonator Blast - Spinning Scythe - The Destroyer - Elemental SpearBS - Warrior's InstinctBS
Passive Boosts	Critical Strike+ - Energized Duration - Melee Damage - Power Attack+ - Resonator Blast+ - Resonator Buildup - Resonator Damage
Weapon Techniques	Burst Fire - Melee Detonator - Spread Shot
Valor Surges	Critical Boost - Melee Might - Warrior's Vigor
Other
Outfit/food only	Evader - Low Health Valor - Second Chance - Shard Salvager - Drop Shield CapacityBS