Wyrmsbane (Dragon Buster in the Japanese version) is a Manakete Skill in Fire Emblem: Awakening. It deals effective damage against dragon units when the user uses a Dragonstone. It is learned by Manaketes at Level 15.
This skill is mainly used against Wyvern Riders and Wyvern Lords as there are no Manakete or Dragon Tribe units in the game. However, if used against a StreetPass team with Nowi, Nah, Tiki, a Manakete mothered Morgan, or a SpotPass Tiki, then Wyrmsbane will be effective against these units.
In Other Games Edit
A precursor to this skill appears in all games with Fire Emblem: Ankoku Ryu to Hikari no Tsurugi, Fire Emblem: Mystery of the Emblem, and Fire Emblem: Binding Blade where the Divinestone/Mist Breath deals extra damage towards Dragon type units.