Equipping multiple sets will stack up the Rune set bonus. Engraving 4 pieces of this Rune will increase the Monster's Attack Speed by 25%. The increase is based on the monster's base Speed.

What do Will runes do in Summoners war?

Runes are items that you can power up and equip on your monsters to make them stronger. ... There are currently 6 rune slots available for each monster. When you equip a certain set of runes, you will get bonus stat effects.

Are ancient runes better Summoners war?

An Ancient Rune Set give an additional Effect bonus when combined. ... Ancient Rune are different then regular Runes, they have a higher minimum and maximum initial sub-stats. There also Ancient Grindstone and Ancient Enchanted Gem that can be used on Ancient Runes.