Characteristics required for a greatsword with a grafted blade:
- Strength: 27 strength for two-handed weapons, 40 for one-handed weapons
- Agility: 14 dex
- Endurance: Quite a bit (with very light armor and/or no shield) to use it without exceeding 70% encumbrance and fat roll.
Elden Ring: where to find a greatsword with a grafted blade
You need to get to Castle Morne, which is located at the southernmost tip of the Weeping Peninsula, a small area south of Limgrave. It is relatively easy to avoid the ballista defense of the castle by keeping to the right as you approach on horseback.
The dungeon itself is pretty simple. After taking the elevator from the entrance, avoid the mass of enemies on the right (pictured in the above screenshot) and head to the back of the courtyard. On the right, there is a staircase to the ramparts.
You can only go south from the top of the stairs, so go there and be careful of flying Misbegotten. At the fork, the right path will take you to a place of grace and a relatively linear path to the boss. The left one will take you to Edgar, Irina’s father and part of her side quest. You’ll want to talk to him with the Grafted Blade Greatsword to continue this quest.
The boss area of Leonin the Misbegotten is pictured above. This is a fast and aggressive enemy, but certainly not Margit and not a particularly difficult Elden Ring boss. Defeat him and the Greatsword of the Transplanted Blade will be yours.