Scouring Weapon
Artificer Attack 1
You infuse your weapon with acid, momentarily corroding your opponent's defenses.
Encounter ✦ acid, arcane, weapon
Melee or Ranged weapon
Target: One creature
Attack: Intelligence vs. AC
Hit: 2[W] + Intelligence modifier acid damage, and the target takes a -2 penalty to AC until the end of your next turn. [EPG:48]