I've noticed that an Oora/Widu build for Shamans, due to added attack power and spell damage. I havn't used it in many situations, but it's soloing very well so far.
One of the Shamans big starter skills is a Widu based one, so that helps if you need a finishing skill. Healing goes off of INT, which Widu gives 1 for every point. Add that up, and it's a substantial amount for a secondary tanker.
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