Au Auger

Au Auger is a passive orb in Peglin that grants additional piercing to projectile attacks whenever a critical hit occurs. It affects thrown-style orbs and other horizontal projectile attacks, increasing how many enemies those projectiles can pass through as the player triggers critical hits during a run. The effect stacks with each critical trigger, effectively adding one extra enemy penetration per crit event.

The orb interacts with built-in and external sources of critical hits. The first critical hit that actually deals damage is counted toward piercing, so automatic or guaranteed crit effects such as Critiball and Knife's Edge also trigger Au Auger's bonus when they deal damage. Each subsequent critical hit triggers another increment to projectile penetration, allowing projectiles to slice through more enemies as crits accumulate.

• The effect applies specifically to projectile/throwing attacks; non-projectile damage types do not gain piercing from Au Auger.
• Each time a critical hit is triggered, projectile attacks gain +1 additional enemy pierced. This is cumulative over the run as more crits occur.
• The first damaging critical in a run counts toward the piercing bonus, including automatic crit sources.
• Au Auger is best paired with builds that: generate frequent criticals (crit chance multipliers, crit-triggering orbs), fire multi-hit or wide projectiles, or rely on clearing lined-up enemy groups where extra penetration yields high value.
• Because the bonus scales with the number of crits triggered rather than a static flat amount, its effectiveness grows over the course of a run and synergizes strongly with cards and relics that increase critical frequency.