Mark of Stygia
( Fiendish Codex II: Tyrants of the Nine Hells, p. 85)[General]
Levistus demands that his servants work endlessly to extract him from his icy tomb. From your time on the glacier, you have learned to use your environment to best advantage.
Prerequisite
Brand of the Nine Hells (FCII) , allegiance to Levistus,
Benefit
Those who serve Levistus are accustomed to the inhospitable cold and ice of Stygia. You never need to make Balance checks when on slippery or severely slippery surfaces, and you can move at full speed over any terrain that would ordinarily require a Balance check. Whenever both you and an opponent stand on icy or frozen surfaces, you gain a +4 bonus on attack rolls and damage rolls. Finally, each round as a swift action, you can line a weapon you wield with Stygian cold for 1 round. On a successful hit, this weapon deals an extra 1d6 points of cold damage. If the weapon is made of Baatorian green steel (see page 99), it deals an extra 2d6 points of cold damage instead.