WoW Forever class abilities, the new and changed spells, read from the beta client

Paladin

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  JudgementChanged: it no longer eats your seal. 10 yd range, 10 sec cooldown. Judging Seal of Fury taunts for 4 sec.
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  Seal of FuryThe tank seal: every hit adds Holy damage, and with a shield up an absorb worth half of it. Level 10, ranks to 58.
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  Holy StrikeBaseline Ret strike, 10 sec cooldown: weapon damage plus Holy. Level 6, ranks to 60. Several talents build on it.
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  Blessing of Kings and ConsecrationBoth trainable now, not talents. Consecration at level 20.

Priest

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  PenanceNew Discipline channel: Holy damage or healing, instantly and every 1 sec for 2 sec, 12 sec cooldown. Rank 1 from the talent at 30, ranks 2 to 4 at 40, 50 and 60.
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  Binding HealNew 1.5 sec cast: heals a friend and you at once, low threat. Rank 1 from the talent at 25, ranks 2 to 6 from 32 to 56.
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  Prayer of MendingNew: a heal that goes off when the target is hit or healed, then jumps to a party or raid member within 20 yd, up to 5 times. Instant, 10 sec cooldown. Rank 1 from the talent at 40, ranks at 50 and 60.
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  Shadow Word: DeathNew Shadow nuke, 18 sec cooldown, ranks at 32, 40, 48 and 56. If the target survives you take 10% of your max health. Early Demise adds 15 or 30% crit on targets at or below 20% health.

Hunter

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  Aimed ShotTrainable now, not a talent, and quicker: 2 sec cast (Classic 3), 6 sec cooldown shared with Multi-Shot. Level 20, ranks to 60. A reader caught the cast time on Xaryu's stream.
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  Call OwlCall Pet is named after your pet. The demo Hunter's read Call Owl.
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  Aspect of the BeastChanged: rank 1 makes you untrackable and adds 50 melee attack power (Classic: untrackable only). Spotted by a reader on Xaryu's stream.

Mage

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  Comprehend ScrollNew little ability: decipher an untranslated scroll. Level 6.
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  Arcane BlastNew. Rank 1 from the Arcane talent, ranks 2 to 5 at 30, 40, 50 and 60.
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  Ice LanceNew. Rank 1 from the Frost talent, five more ranks from 28 to 56.
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  Frostfire BoltNew at 40, ranks at 50 and 60: a bolt that is both Fire and Frost. Missile Barrage, Improved Fireball and Heating Up name it.
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  Teleport: DalaranNew at 50. The files give it to Alliance races only and the class trainer does not sell it; where it is learned is not known yet.

Warlock

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  Bane of AgonyCurse of Agony, renamed. Bane of Doom the same. Banes and Curses are separate now, so you can run one of each.

Warrior

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  RageFrom damage taken and your swings. Slower weapons give more Rage a swing, so it comes in at a steady rate. Out of combat you lose 1.25 Rage a second. From the Rage tooltip and Blizzard's Class Highlights video (0:23).
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  Victory RushBaseline, Arms tab. Instant, 30 sec cooldown: a melee hit that heals 10% of your max health, within 20 sec of a non-trivial kill. Read off Soda's stream via a reader.
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  Tactical MasteryA passive in the Arms tab now, not a talent: keep up to 10 Rage when you change stances, and Improved Tactical Mastery adds up to 15 more. From Soda's Warrior video via a reader.
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  InterceptUnchanged from Classic: level 30 in the Fury tab, ranks at 42 and 52. Improved Intercept stays in the Fury tree.
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  SlamA new rank 1 at 20; Classic's four ranks follow at 30, 38, 46 and 54, one rank number higher. 18 sec cooldown now (Classic had none).
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  Thunder ClapWorks in Battle or Defensive Stance. Rank 4 slows attacks 20% for 22 sec on up to 4 targets (Classic 10%). Xaryu's stream via a reader; the Classic number from the files.
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  BloodrageStill there, Protection tab: 20% of your base health for 10 Rage, plus 10 more over 10 sec.
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  Shield WallChanged: 15 min cooldown, 60% less damage for 12 sec (Classic 30 min, 75% for 10 sec). No shared cooldown with Retaliation and Recklessness any more: each has its own timer, and Blizzard's Class Highlights video (1:14) says so. Two readers flagged it first.
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  Shield BlockChanged: 2 charges and 7 sec (Classic 1 block for 5 sec). Still 10 Rage, 5 sec cooldown, Defensive Stance. From a Tyler1 spellbook screenshot a reader sent in.

Rogue

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  EnergyComes back 1 point every 0.1 sec, 10 a second: Classic's rate with no tick to wait for. From the Energy tooltip and Blizzard's Class Highlights video (3:41).
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  MutilateNew talent, Assassination row 5: both weapons at 75% each, 20% more on poisoned targets, 2 combo points. Remorseless Attacks, Lethality, Cold Blood, Puncturing Wounds and Opportunity name it.
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  VenomNew finisher at the bottom of Assassination. Your poisons do 30% more and apply 10% more often, longer per combo point.
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  Thousand CutsNew Subtlety capstone. Each Rupture tick takes 3 Energy off your next Hemorrhage or Backstab, stacking to 5.
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  AxesRogues can use one-handed axes now. The Hack and Slash talent lists Axe/Sword as a weapon group.

Druid

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  Omen of Clarity and Nature's GraspBoth trainable now, not talents, in the Balance tab: Nature's Grasp at 10, Omen of Clarity (a passive now) at 20.
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  ReviveNew out-of-combat resurrection, 10 sec cast. Rebirth keeps its 30 min cooldown.
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  LacerateBear bleed from later expansions, baseline here; Shredding Attacks cuts its Rage cost. Level 42, ranks at 50 and 58. Thanks to a reader.
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  Cure PoisonStill here: level 14 from the quest Power over Poison, as in Classic. Since build 70170 High Order Skyborne can take that quest too (Blizzard's notes).

Shaman

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  Lightning BoltRanks 4 to 10 cast in 2.5 sec, half a second under Classic's 3. Ranks 1 to 3 keep 1.5, 2 and 2.5 sec.
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  Chain LightningAlso half a second faster: rank 1 is a 2 sec cast, 6 sec cooldown, 3 targets, each jump 30% weaker. Max Elemental Alacrity brings Lightning Bolt to the same 2 sec.
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  Totemic ProjectionNew: pick a spot up to 30 yd away and your totems move there. Seen on Guzu's stream. Totemic Recall is in too.
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  Totems last 5 minLasting totems last 5 min now (most were 2 min in Classic; Healing Stream and Mana Spring 1 min). Searing (30 to 55 sec by rank), Magma (20), Stoneclaw (15), Earthbind and Grounding (45) and Mana Tide (12) keep their short timers. Blizzard's Class Highlights video (3:00) says five minutes.
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  Call of the Elements, Ancestors and SpiritsNew: each drops up to four totems from its own Totem Bar set in one 3 sec cast. Elements at 20, Ancestors at 30, Spirits at 40.
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  Ghost WolfStill a 3 sec cast, but Improved Ghost Wolf takes 1 sec off at rank 1 and all 3 at rank 2, and lets it work indoors: instant at 2/2, as Guzu's tooltip showed.
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  Fire NovaA spell now, not a totem: 30 yd range, instant, 10 sec cooldown, blasts everything within 10 yd of your Fire totem (rank 3 at 32: 126 to 142; rank 5 at 52: 232 to 258). Trial by Fire trims 2 or 4 sec off the cooldown.