EricNoah said:To make a mithral sword, you'll have to go into the House Rules customizer tool and just create a custom weapon that has the properties of whatever base sword (let's say a longsword) you wanted, but then adjust things like the weight and the cost.
Then in the treasure generator or the character editor, you mix your mithral sword with a +3 bonus and the keen ability, and voila.
However, folks are reporting a bug where "keen" weapons aren't accurately bumping up the threat range on weapons. So keep your eye out for a patch.![]()