If you are unsure of what to power up, a good rule of thumb would be to +12 all runes before maxing any. For monsters you use frequently, it is a good idea to make all runes at least +12 because it brings out all of their potential sub stats. Magic 12ġ2 is a special number with runes because at that level every rune hits its peak with substats before grindstones are applied. In fact, maxing slots 1-3-5 are not very important until your overall box has reached a very high rune quality. Slots 2, 4, and 6 carry the highest ceiling for stat boosts because they can have % values as primary stat. When talking about runing monsters, these slots come up a lot, and with good reason. Understanding what to power up is not the highest difficulty concept in this game, but here are some basic guidelines that will really help you raise your monster ability efficiently. Maxing runes unlocks the full potential of your runes: you have not seen your monster’s limit on its runes until it has maxed runes. In fact, even without getting better runes, you can progress just by powering up your runes. Powering up runes is a major step in improving.