Boss Soul Items are either weapons or spells in Dark Souls II that can be obtained by exchanging the soul of a boss to a certain merchant. Only two merchants will offer this service: Straid of Olaphis and Weaponsmith Ornifex, who both must be rescued from their respective predicaments first.
Straid of Olaphis[]
Straid must be cured of his petrification in The Lost Bastille before he can be spoken to. Once freed, he will remain just outside the cell.
| Boss Soul Given | Souls Cost | Received Weapon | |||||||
|---|---|---|---|---|---|---|---|---|---|
 Soul of the Last Giant (The Last Giant) |
1,500 |  Giant Stone Axe | |||||||
Soul of the Pursuer (The Pursuer) |
1,500 |
| |||||||
Flexile Sentry Soul (Flexile Sentry) |
1,500 |
| |||||||
Dragonrider Soul (Dragonrider) |
1,500 |
| |||||||
Executioner's Chariot Soul (Executioner's Chariot) |
1,500 |
| |||||||
Skeleton Lord's Soul (Skeleton Lords) |
1,500 |  Roaring Halberd | |||||||
Covetous Demon Soul (Covetous Demon) |
1,500 |  Bone Scythe | |||||||
Mytha, the Baneful Queen Soul (Mytha, the Baneful Queen) |
1,500 |  Mytha's Bent Blade | |||||||
Smelter Demon Soul (Smelter Demon) |
1,500 |  Smelter Sword | |||||||
Demon of Song Soul (Demon of Song) |
1,500 |  Spotted Whip | |||||||
Belfry Gargoyle Soul (Belfry Gargoyles) |
1,500 |  Gargoyle Bident |
| Boss Soul Given | Souls Cost | Received Spell |
|---|---|---|
Ruin Sentinel Soul (Ruin Sentinels) |
1,500 |  Heavy Homing Soul Arrow |
Scorpioness Najka's Soul (Scorpioness Najka) |
1,500 |  Soul Shower |
Royal Rat Vanguard Soul (Royal Rat Vanguard) |
1,500 |  Toxic Mist |
Royal Rat Authority Soul (Royal Rat Authority) |
1,500 |  Acid Surge |
Darklurker Soul (Darklurker) |
5,000 |  Lifedrain Patch |
 Soul of Velstadt (Velstadt, The Royal Aegis) |
3,000 |  Sacred Oath |
 Giant Lord Soul (Giant Lord) |
5,000 |  Repel |
 Old Witch Soul (The Lost Sinner in NG+) |
5,000 |  Flame Weapon |
Old Dead One Soul (The Rotten in NG+) |
5,000 |  Numbness |
Old King Soul (Old Iron King in NG+) |
10,000 |  Blinding Bolt |
Old Paledrake Soul (The Duke's Dear Freja in NG+) |
10,000 |  Crystal Soul Spear |
 Soul of Nadalia, Bride of Ash (CotOIK) (Ashen Idol) |
45,000 |  Outcry |
Weaponsmith Ornifex[]
Weaponsmith Ornifex must first be freed from her cell in the Shaded Woods. She will then relocate to her home next to the Lower Brightstone Cove bonfire in Brightstone Cove Tseldora.
