The Shadowhawk is a Unique Sword from Diablo I that is found randomly. The 5% Resist All doesn't make much of a difference, but the 5% Life Steal is a useful effect. The -20% Light Radius however, could make visibility an issue.
Stats

Shadowhawk
Broad Sword
- Damage: 4-12
- Hit Steals 5% Life
- +15% To Hit
- +5% Resist All
- -20% Light Radius
- Requirements: 40 Strength
- Durability: 50
- Quality Level: 8
- Availability: Single Player and Multiplayer
Diablo I Unique Swords — Black Razor (Dagger) • Gonnagal's Dirk (Dagger) • Wizardspike (Dagger) • The Defender (Sabre) • Lightsabre (Sabre) • The Falcon's Talon (Scimitar) • The Executioner's Blade (Falchion) • Gryphon's Claw (Falchion) • Ice Shank (Long Sword) • Inferno (Long Sword) • Bonesaw (Claymore) • Griswold's Edge (Broad Sword) • Gibbous Moon (Broad Sword) • Shadowhawk (Broad Sword) • Doombringer (Bastard Sword) • The Grizzly (Two-Handed Sword) • The Grandfather (Great Sword)
Hellfire Unique Swords — Diamondedge (Long Sword) • Eater of Souls (Two-Handed Sword) • Shirotachi (Great Sword)