Grandmaster Griffin Steel Sword is a Silver Sword in the Witcher 3: Wild Hunt - Blood and Wine Expansion.
- 335 - 409 Slashing Damage
- +21% Sign intensity
- +25% Critical hit damage bonus
- +5% Critical hit chance
- +10% Chance to dismember
- +5% Bonus experience from humans and nonhumans.
- 1x Mastercrafted Griffin Steel Sword
- 2x Leather Scraps
- 2x Enriched Dimeritium Ingot
- 1x Monster Heart
- 1x Monster Essence
- You can obtain this diagram at Fort Ussar in the eastern part of the map. It is found in a chest under the stairs along with the Grandmaster Griffin Silver Sword and Grandmaster Griffin Gauntlets.
- Video guide to the location:
| Angivare | | Ard'aenye | | Ashrune | | Barber-Surgeon | | Beauclair Steel Sword | | Black Unicorn | | Bloed Aedd | | Caerme | | Caroline | | Cleaver hood | | D'yaebl | | Dancer | | Daystar | | Devine | | Diagram Abritrator | | Diagram Beann'shie | | Diagram Black Unicorn | | Diagram Longclaw | | Forgotten Vran Sword | | Glory of the North | | Grandmaster Wolven Steel Sword | | Gwestog | | Gwyhyr | | Harvall | | Headhunter | | Hen Gaidth Steel Sword | | Hjalmar's steel sword | | Hope | | Inis | | Lune | | Manticore Steel Sword | | Mourner | | Princess Xenthia's sword | | Superior Dol Blathanna sword | | The Emmentaler | | Tir Tochair Blade | | Tor Lara | | Toussaint Ducal Guard Officer's Steel Sword | | Ultimatum | | Wolf (Weapon) |