Molten Fury is a mage talent that increases damage done to targets with less than 20% health by 10% per rank, up to 20% at max rank 2. This talent provides a straight 20% DPS increase for the last one fifth of a mob's health, for an overall DPS increase of 4% on average. The talent is popular among Fire-specced PvE raiding mages. The last 20% of a raid boss fight can be the most critical, with low mana and dead players. By the 20% mark, aggro is firmly established and DPS classes are free to unload, making the effective DPS increase much more valuable. Also, because this is a multiplicative damage increase, it increases more effectively as other vulnerabilities are applied to the target (such as [Improved Scorch] and [Curse of the Elements]) as well was gaining increases from talents such as [Playing with Fire] and [Fire Power].
Although this talent is situated in the Fire tree it applies to all spell damage caused by the mage.
[Improved Scorch] and 
[Curse of the Elements]) as well was gaining increases from talents such as 
[Playing with Fire] and 
[Fire Power].
