Runes and Enchanting

By Iron Soul Guides Team Published Updated Official + community evidence · reviewed September 4, 2026

There are four runes, not three. Burn, Frost, Corrode and Methysis all appear in the official-branded wiki rune template and in the second wiki's item list, and both sources describe the same four effects. One popular guide site publishes only three and drops Methysis entirely, and a second wiki page calls Burn by the older name Fire, so the count and the spelling are both worth stating up front. The number that matters most is the slot multiplier: the same rune pays its full value on a weapon, 60 percent of that value on body armour and 40 percent on a helmet. Enchanting costs gold on a fixed ladder that depends only on the rune's level, from 2,400 gold at level 1 up to 7,200 at level 5, and never on the piece you are enchanting. Runes come out of the Cave of Runes, out of the grocery shop for roughly 3,000 gold at level 3, or out of the season battle pass. Taking one off again destroys it.

The slot multiplier, worked out

Because effectiveness is a flat percentage, you can compare slots without knowing any of the hidden per-level numbers. Take any value a rune rolls and call it X. On a weapon you get X. On body armour you get 0.6X. On a helmet you get 0.4X. Three copies of the same rune across weapon, body and helmet therefore total 2.0X rather than 3X, and a helmet copy is worth exactly two thirds of a body copy. That is why the recommended endgame layout puts the highest-value rune on the weapon and treats the helmet slot as the place for the effect you care about least.

Upgrading a rune is a reroll, not an upgrade

The wiki is explicit that raising a rune's level rerolls all of its hidden values at once: proc chance, damage, duration and tick damage are all redrawn. A higher level widens the possible range, but it does not guarantee that the new rune beats a lucky low-level one you already own. Compare the two before you swap, because the old rune is not recoverable once it has been broken out of a piece of gear. None of the four runes has published proc percentages at any level, and we are not going to invent them.