From Blizzard’s hotfix posts
Mage changes.
Every Mage change Blizzard posts, and how each spec has done in battlegrounds since.
Frost Mage
- Frostfire: Isothermic Core’s Meteor damage increased by 20% in PvP combat.
- Frostfire: Duality’s Pyroblast damage increased by 20% in PvP combat.
Since: 45.3% ▲ 3.4137 games · was 41.9%
Fire Mage
- All damage reduced by 5% in PvP combat.
Since: 33.3% ▼ 14.4144 games · was 47.7%
Fire Mage
- Glass Cannon now increases the damage of Fireball, Scorch, and Ignite by 25% (was 20%).
- World in Flames now empowers Flamestrike to deal up to 75% more damage (was 50%).
Since: 41.6% ▼ 8.8529 games · was 50.4%
Frost Mage
- Frost Bomb damage increased by 150%.
- Icy Feet now grants snare immunity for 4 seconds (was 3 seconds).
Since: 44.1% ▲ 3.7524 games · was 40.4%
Change lines are Blizzard’s, linked to the post they come from. Lines marked “PvE only” say they do not affect PvP combat. “Since” is the win rate in recorded Random Battlegrounds games from the day after a change to now, compared with the 14 days before it; it needs 100 games. It shows what happened after a change, not that the change caused it, and several changes can overlap.