Arcane Brilliance is a core mage ability learned at level 58. It is a very long-lasting critical strike and spell powerbuff that affects an entire party or raid at once.
Use: Permanently teaches you this glyph. Your Arcane Brilliance spell allows you to comprehend your allies' racial languages.
Sell Price: 1
Patch changes
Patch 5.3.0 (20-May-2013): Arcane Brilliance had its mana cost reduced to 1%, down from 4%.
Patch 4.0.6 (8-Feb-2011): The mana costs of Arcane Brilliance and Dalaran Brilliance have been reduced by approximately 16%, making them roughly equal to the cost of Mark of the Wild.
/Patch 4.0.1 (12-Oct-2010): Mana cost reduced to 31% of base mana, reagent cost removed. Now increases spell power by 6% and maximum mana by an amount based on level instead of increasing intellect.
/Patch 3.0.2 (14-Oct-2008): Arcane Brilliance Rank 2 was added to mage trainers, making the Tome obsolete. Rank 3 is also trainable, though you need World of Warcraft: Wrath of the Lich King to reach the required level.