Mark of Hydross

From WoWWiki

This spell is cast by Hydross the Unstable during is pure form phase.

Rank Table

Nr of debuffs	Description
1	Frost damage taken increased by 10%.
2	Frost damage taken increased by 25%.
3	Frost damage taken increased by 50%.
4	Frost damage taken increased by 100%.
5	Frost damage taken increased by 250%.
6	Frost damage taken increased by 500%.