Arcanum¶
Arcanum¶
Pure arcane attunement. Hits harder, crits sharper, and now and then hands back the mana you just burned.
| Field | Value |
|---|---|
| Id | arcanum |
| Echo name | an arcanum echo |
| Echo hue | 0x486 (saturated violet) |
| Max per-slot level | 10 |
| Role | Mage |
Passive - spell damage¶
Every active level adds a flat point to your spell-damage multiplier. The catch: it's PvM-only. Cast at another player and the bonus simply doesn't apply.
Arcanum spell-damage multiplier
damage *= 1 + (activeArcanumLevel * 1 / 100)
| Active level (sum) | Spell-damage bonus |
|---|---|
| 1 | +1% |
| 5 | +5% |
| 10 | +10% |
| 20 | +20% |
| 30 | +30% |
| 60 (6 slots × L10) | +60% |
This rides on top of the PvM 4× and global 0.5× knobs that already shape Magic Arrow, Flame Strike, and the rest - Arcanum layers in after them.
Passive - mana refund¶
Each cast gets a chance to come back free - the whole mana cost, refunded.
Arcanum mana-refund chance
if (rand(100) < activeArcanumLevel * 1) refund full mana cost
| Active level (sum) | Mana-refund chance per cast |
|---|---|
| 1 | 1% |
| 5 | 5% |
| 10 | 10% |
| 30 | 30% |
| 60 (6 slots × L10) | 60% |
Roll under the threshold and the entire cost is returned. It stacks additively with whatever refund chance your skill and spellbook already give you.
Passive - spell crit¶
Arcanum carries a per-level spell-crit chance, now live in combat.
| Effect | Per active level |
|---|---|
| Spell crit chance | +1% |
Arcanum spell crit
if (rand(100) < activeArcanumLevel * 1) damage *= 2
A crit doubles the spell's damage after the spell-damage multiplier applies, marked by a violet flare on the target. PvM-only, like every Arcanum passive.
Set bonuses¶
| Matching slots | Perk | Effect |
|---|---|---|
| 2 | Attuned Mind | Mana regenerates 15% faster. |
| 4 | Surge of Insight | When a mana refund procs, your next damaging spell within 20 seconds deals +25% damage. |
| 6 | Spell Echo | Damaging spells have a 10% chance to echo, repeating 30% of their damage a moment later. |
A slot counts toward the set when it is assigned to Arcanum and has reached level 1. Gear does not need to be equipped. See Set bonuses for the shared rules. Note the synergy loop: mana refund procs scale with level, and every refund can arm a Surge - deep Arcanum investment feeds its own set.
Ultimate - Arcane Cascade¶
Slot Arcanum into your Weapon and land a melee hit, and the Ultimate can proc.
- Visual - a violet energy ring bursts on the target, with a head-layer aura on the attacker for the 15-second buff window.
- Sound - the standard energy-bolt cue.
- Flourish - restores
30 + 3·Lmana to the attacker on proc.
| Weapon-slot Arcanum level | Mana restored on proc |
|---|---|
| 1 | 33 |
| 3 | 39 |
| 5 | 45 |
| 7 | 51 |
| 10 | 60 |
Weapon-swing Ultimate on a mage
The proc fires on a weapon hit landed, never on a spell cast. So even an Arcanum mage has to swing a weapon and connect to trigger Arcane Cascade. That holds for every resonance Ultimate - see Ultimates for the shared mechanics.