Underground Online
Unline · Arcane Progression
Rune Mastery
Deepen a rune once and it burns brighter forever — on that character, for good.

Rune Mastery lets you permanently upgrade the runes you cast. Every rite you buy makes that specific rune stronger — more damage, more healing, or a longer-lasting field — and the improvement is yours to keep. It follows the character, not the item: an untrained rune works exactly as it always has, so nothing you already own gets weaker.

There are five tiers of mastery per rune. Push a rune all the way to Mythic and it hits far harder than a plain rune of the same name.

The Five Tiers

Each rune levels through the same five ranks. Direct-damage, damage-over-time and healing runes gain a bigger effect each tier; field runes (Magic Wall, Wild Growth) last longer instead.

TierNameDamage / Heal runesField runes
1 Greater +20% +2s
2 Grand +40% +4s
3 Epic +60% +6s
4 Legendary +80% +8s
5 Mythic +100% +10s

Example. A Mythic Sudden Death deals +100% damage — double the hit of the same rune untrained. A Mythic Magic Wall stands for +10 seconds longer than usual.

How to Upgrade — Aetherius

Rune Mastery is taught by Aetherius, keeper of the old arcana. Find him, then:

  1. Say hi to greet him, then update to open the rites.
  2. Choose a discipline: Damage, DoTs, or Utilities.
  3. Pick the rune you want to deepen. Its next tier, the bonus it grants, and the price are shown on the line.
  4. Press Update. If you meet the level and can pay, the mastery is applied instantly — no item to hand over, no relog.

You can only ever buy the next tier for a rune — masteries are climbed one rank at a time, in order.

Level & Gold per Tier

Every rune costs the same to master. Each rite requires a minimum character level and is paid in gold — taken from your bank first, then from the gold you carry.

TierNameRequires levelCost
1 Greater 100 100k
2 Grand 250 1kk
3 Epic 450 10kk
4 Legendary 700 100kk
5 Mythic 1,000 1kkk

Mastering a single rune from scratch all the way to Mythic costs roughly 1.1kkk gold in total and needs level 1000 for the final rite.

Runes You Can Master

Damage runes — each rite adds direct-hit damage:

Sudden DeathAvalancheGreat FireballThunderstormStone ShowerHeavy Magic MissileExplosionHoly MissileIcicleStalagmiteFireball

Damage-over-time — each rite adds burn damage:

Soulfire

Utilities — healing and fields (effect shown per rune):

Ultimate Healing (+% healing)Magic Wall (+seconds it lasts)Wild Growth (+seconds it lasts)
Good to Know
  • Per character, not per item. The upgrade is bound to the character who bought it — every rune of that type you cast is stronger, and you never need a special item.
  • Permanent. Once bought, a mastery is yours forever. It survives relog and does not wear off.
  • Untrained runes are unchanged. A rune you have not mastered behaves exactly like it always did, so there is no downside to leaving one alone.
  • Capped at Mythic. Five tiers is the ceiling — a rune at Mythic cannot be pushed further.
  • Look for the frame. A mastered rune shows a special frame in your inventory, so you can tell at a glance which of your runes have been deepened.
Tips

Master what you spam

Put your gold into the one or two runes you actually cast every fight — a Mythic on your main nuke does far more for you than a Greater on ten runes you rarely use.

Climb with your level

The higher tiers gate behind level 450, 700 and 1000. Buy the early rites as soon as you can afford them; save the top tiers for when your character is ready.

Find Aetherius, choose your discipline, and let your runes burn brighter.
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