Comprehension: a Mage Tradeskill
Comprehension is a Mage-specific minor tradeskill: read and decipher scrolls dropped by enemies. No other class gets a tradeskill of its own.

A Fire proc that refuses to be Hot Streak, an Arcane tree rebuilt twice in a month, and a bolt that is two schools at once. Arcane · Fire · Frost.
70 Mage changes that alter play — new and reworked abilities, mechanics and talents — each shown against its Classic Era 1.15.9 form. Not listed: tooltip-only wording, rank-count changes, and sub-threshold numeric drift.
Comprehension is a Mage-specific minor tradeskill: read and decipher scrolls dropped by enemies. No other class gets a tradeskill of its own.

Low-rank spells have a reduced chance to trigger proc talents in Forever — downranking for proc fishing no longer works at full rate.

[Arcane Blast]! is a new row 3 talent. [Arcane Wrath]! is the tree's new 16-point milestone talent; [Missile Barrage]!, the deep dive's milestone, sits at row 2 in the launch client.

Non-periodic critical strikes with Fireball, [Frostfire Bolt]!, Fire Blast or Scorch build [Heating Up]!: each stack cuts [Pyroblast]!'s cast time by 25%, up to 3 stacks, with a 1.5 second floor. It never makes [Pyroblast]! instant.

[Ignite]! is a unique debuff per Mage in Forever. Classic Era shared one [Ignite]! per target between every Mage attacking it.

[Ice Lance]! is a new Frost talent at row 3; against Frozen targets it deals +200% damage. [Fingers of Frost]!, at row 5, is the proc that feeds it.

[Frostfire Bolt]! is learned from the trainer at level 40 in Forever and carries 3 ranks — one spell dealing Frost and Fire damage at once.

Every remaining change, grouped by kind. Hover a name for its tooltip; hold Shift for the Classic Era side.
New in Forever. Trainer spell at level 24.
New in Forever. Learned at level 50.
Duration and tooltip text changed.
| Classic Era | Forever | |
|---|---|---|
| Duration | 30 min | 60 min |
| Text | …target's Intellect by 31 for 30 min. | …target's Intellect by 31 for 60 min. |
Duration and tooltip text changed.
| Classic Era | Forever | |
|---|---|---|
| Duration | 8 sec | 6 sec |
| Text | …Frost damage and are slowed by -50% for 8 sec. | …Frost damage and are slowed by -40% for 6 sec. The first 4 [dynamic]target:targets; hit… |
Talent in Classic Era; baseline in Forever.
| Classic Era | Forever | |
|---|---|---|
| Duration | until cancelled | — |
| Ranks | 2 ranks | 1 rank |
Not in the Forever client.
Era talent; no Forever counterpart.
Era talent; no Forever counterpart.
New talent. Frost, row 1, 3 ranks.
New talent. Fire, row 1, 5 ranks.
Era talent; no Forever counterpart.
Era talent; no Forever counterpart.
New talent. Fire, row 1, 5 ranks.
Era talent; no Forever counterpart.
New talent. Arcane, row 3, 2 ranks.
New talent. Arcane, row 3, 3 ranks.
New talent. Arcane, row 4, 2 ranks.
Era talent; no Forever counterpart.
Era talent; no Forever counterpart.
New talent. Arcane, row 1, 5 ranks.
Era talent; no Forever counterpart.
Baseline in Forever - see Changed Abilities.
Changed.
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Row 3 → 1 · Max ranks 1 → 2.
Row 1 → 2.
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Max ranks 2 → 3.
Row 3 → 5.
Changed.
Max ranks 5 → 3.
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Row 4 → 3.
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Row 5 → 4.
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Row 1 → 2 · Max ranks 5 → 3.
Changed.
Changed.
Row 2 → 3 · Max ranks 3 → 2.
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Max ranks 5 → 2.
Changed.
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Max ranks 5 → 3.
Row 2 → 1.
Changed.
Not listed: 22 of 92 entries, excluded by category (tooltip-text-only: 21 · rank-count noise: 1).
Forever’s Fire proc is a ramp, not a free cast. Each qualifying crit takes 25% off your next Pyroblast; three stacks bottom out at the 1.5-second floor. Try to make it instant — the design won’t let you.
Not instant. Ever. Three stacks is a 1.5-second cast — the floor is the mechanic. The talent that made Pyroblast instant in later expansions was called Hot Streak; this one was renamed away from that name on Oct 1 “since it is no longer dependent on having a ‘streak’” (BN-1001).
Three trees, 51 points at level 60. Rows unlock every 5 points spent across the build; milestones at 11, 16, 21 and 31 points; capstones at 30. Click a node to spend — hover for its tooltip, with the next rank shown while it is unmaxed.
Click to spend · Shift-click or right-click to remove. A tier unlocks at 5 points per tier spent across the build; ◆ marks the 11/16/21/31-point milestones. Arrows show only the prerequisites present in the client TraitEdge data (7 of 53 talents here) — a prerequisite must be at max rank.
Talent-granted spells only. Trainer-taught baseline spells are not listed.

The Fire proc talent is still called Hot Streak in this build (buff duration 15 → 20 sec); Wake of Fire’s buff lasts 20 → 30 sec.

Hot Streak is renamed Heating Up — “since it is no longer dependent on having a ‘streak’.” Combustion returns to 3 charges.

Frostfire Bolt at 40, the Comprehension minor tradeskill, Ice Lance at +300% vs Frozen, Arcane Blast and Missile Barrage as the Arcane milestones —…

Arcane rebuilt: Arcane Blast redesigned (1.5-sec cast, Intellect stacking), Missile Barrage demoted to an early talent, Arcane Wrath the new…
Every batch, every reversion, every value — set against Classic Era 1.15.9.