This page is about the support gem. For the projectile behaviour, see Pierce.
Pierce ISupport, Projectile Category: Pierce Tier: 1Support Requirements: +5 DexSupports Projectile skills, making their ProjectilesPierce an enemy but deal less damage after doing so.Projectiles from Supported Skills Pierce an Enemy Projectiles from Supported Skills deal 20% less Damage if they've Pierced an enemyPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
Many Supports now have multiple tiers as you progress through the game, providing different stat values, additional stats, or perhaps working a bit different to their lower-tier counterparts. Due to these changes, many existing support gems (which will now be tier 1 for cases where multiple tiers now exist) have received small numerical balance changes, and the effects of some support gems have been combined into a single gem.