If you are at all familiar with religious stories, you will realize this isn't an outlandish idea. The skill itself is quite self explainatory: use the skill, walk on water for a limited time (probably around 15-30 seconds, roughly). It would give a more realistic appeal to the class, and is not a skill that will change the pvp aspect of disciple (other than perhaps running away). If you like this idea, or if you have other suggestions/ideas, please feel free to post!