Effects by level
Level 1
Become immune to all Status Ailments while affected by shields, but -90% Shield HP and Defensive Stance's Damage absorption amounts. (Not applicable to Battlefield Shield)
Level 2
Become immune to all Status Ailments while affected by shields, but -75% Shield HP and Defensive Stance's Damage absorption amounts. (Not applicable to Battlefield Shield)
Level 3
Become immune to all Status Ailments while affected by shields, but -50% Shield HP and Defensive Stance's Damage absorption amounts. (Not applicable to Battlefield Shield)
Learning stages
Stage 1
Engraving points 3
You must complete the quest [Ealyn's Request]
Stage 2
Engraving points 6
You must complete the quest [Ealyn's Request]
Stage 3
Engraving points 9
You must complete the quest [Ealyn's Request]
Stage 4
Engraving points 12
Stage 5
Engraving points 12