Sain-tai tal-a-yi eriku: Once per round, when making an attack roll, you may re-roll one die of the attack roll. If the new result of the die is the same as the old result, deal on damage to the defending warrior.
Genghis Khan's most brilliant general, the renowned Subedei crushed the Kwarazinian Empire and moved on to subjugate the Russians and the Cumans.