Medieval Craft (weapons only) - medieval weapons and armor на версии [1.12.2] [1.16.5]

(Some weapons, such as a great sword, long sword, katana, spear, are larger in the hand, but the size is not displayed in the item's frame).

Excalibur

Excalibur is the most powerful sword in the mod, with more than 30 damage and fire resistance, Resistance III, Speed II, Strength II, Regeneration II.

To find it, you need to locate the stone in which it resides and right-click; the stone is extremely rare.