Warblade

Warblade is an enchanted two handed sword +4, but it inflicts 1d12 +4 points of damage instead of 1d10 +4. It has a -4 THACO, a speed factor of 4 and it weighs 11 lbs. This item appears in Baldur's Gate II: Shadows of Amn and Baldur's Gate II: Enhanced Edition. It can be bought in Ribald Barterman's special stock in chapter 6 in the Adventurer's Mart.

In-game description
"Two Handed Sword +4, Warblade This large sword is an enchanted version of the barbaric swords of the Northern tribes. Forged during battle and dipped in the blood of the brave fallen, the enchantment granted to the blade by the barbarian gods is incredible."