True. (here a few that you can choose)
Also, a number of these runes come from RHUNRIKKI STROLLAR QUEST by soulcake
So feel free to go and take a look at it if you not seen it. (Keep in mind I might rework them a bit for the quest itself)
(might change this at a later date but you can make use of these) (Dunno if I will buff them or nerf them yet but we will see)
Master Rune of Breaking: The weapon has a chance of outright destroying shoddier weapons it strikes. (Addition by me is it affects undead quite a bit and gives you +15 To all attack rolls.)
Master Rune of Conduction: The weapon heats up to a blazing temperature before transferring the energy once it connects. (+15 To all attack rolls. Also rolls a D100 with a DC of 70 on setting your opponent aflame)
Master Rune of Currents: The weapon cuts like the biting winds at the mountain's peak, faster, sharper and nearly unblockable. (+15 To all attack rolls. Higher DC save when using the weapon)
Master Rune of Flight: Weapons cannot be lost, and can be thrown at the enemy as if launched from a bolt thrower (+25 To all attack rolls against large groups. Do note that a low roll will have the character fighting without his weapon for a bit)
Master Rune of Grimnir: The Bearer will fight as if channelling the Ancestor's will, unhindered by Injury or Hurt until either they or their quarry are killed. (Negates all Injuries you accumulate during battle and +10 against enemies you have a grudge with)
Master Rune of Smiting: Every blow by a weapon bearing this Rune strikes with force beyond reckoning. (+25 To all attack rolls against monsters and +15 against standard enemies)
Master Rune of Thunderbolts: The weapon crackles with barely controlled lightning that erupts in a massive burst of electricity that travels through nearby foes or can be concentrated at a lesser foe in a single strike. (Special attack every four combat phases but requires practice to work. Unless you want to end up cooked.) (Requires special training and weapon skill of 20 to make use of the rune properly)