Elemental,Restoration: Imbue your weapon with the element of Fire for 1 hour, causing each of your attacks to deal (2.6% of Attack Power) additional Fire damage.
Enhancement: Imbue your off-hand weapon with the element of Fire for 1 hour, causing each of your off-hand attacks to deal (2.6% of Attack Power) additional Fire damage.
The flames licked the edges of the weapon as though only blood would slake its thirst.[1]
Flametongue Weapon is a shaman temporary weapon imbue that causes melee attacks to deal additional fire damage, available at level 7. For enhancement, Flametongue will only imbue the shaman's off-hand weapon, and it increases the damage done by [Lava Lash] while active.
Flametongue Weapon is one of the two shaman weapon imbues available (the other being [Windfury Weapon]), and the only shaman imbue available for elemental and restoration.
Unlike roguepoisons, Flametongue Weapon is applied as a temporary weapon enchant. Therefore it cannot be used with a weapon stone or oil on the same weapon (they will overwrite each other).
Tips and tactics
Enhancement shamans should always have Flametongue Weapon imbued due to the buff it gives to [Lava Lash].
Consumable imbues (ex. [Shaded Weightstone]) do not compare for enhancement, and should never be considered over Flametongue Weapon.
In contrast, elemental and restoration shamans gain no real value from Flametongue Weapon, and should use [Shadowcore Oil] or [Embalmer's Oil] on their weapons instead.
Patch changes
Patch 9.0.1 (2020-10-13): Reintroduced, replacing Flametongue. No longer increases the shaman's magical damage. Damage dealt no longer considers weapon speed. Icon changed.