(a) Except as otherwise provided under the terms of the trust, a trust advisor of a noncharitable trust or trust protector of a noncharitable trust is a fiduciary with respect to each power granted to such trust advisor or trust protector. A trust advisor of a charitable trust or a trust protector of a charitable trust is a fiduciary with respect to each power granted to that trust advisor or trust protector. Notwithstanding the breadth of discretion granted to a trust advisor or trust protector under the terms of the trust, including the use of such terms as "absolute," "sole," or "uncontrolled," a trust advisor or trust protector must exercise a discretionary power and otherwise act in good faith and in accordance with the terms of the trust, the purposes of the trust, and the interests of the beneficiaries.
(b) A trust advisor or trust protector is an excluded fiduciary with respect to each power granted or reserved exclusively to any one or more other trustees, trust advisors, or trust protectors.