Keen Oil

Component Cost: 200 gp
Market Price: 600 gp
Key Skill: Arcana or Thievery (no check)
Level: 10
Category: Oil
Time: 1 hour

When you rub this thin oil on a bladed weapon, it hones the edge to razor sharpness.

Keen Oil
Level 10 Uncommon

The sword sweeps through your enemy, cutting through its armor and flesh in one deadly arc.

Price: 200 gp
Alchemical Item

Power (Consumable): Minor Action. Apply keen oil to an axe, a heavy blade, a light blade, a polearm, or a spear. Until the end of your next turn, you can score a critical hit with this weapon on a roll of 19–20.

Published in Eberron Player's Guide, page(s) 101.