Q: Dear Sage,
What exactly is the limit to what you can 'persuade' a charmed enemy to do with the charm person spell? How trusting of the caster is a charmed individual?
A: The spell description for charm person indicates that the target’s attitude toward you becomes “friendly” as defined by the Diplomacy skill (PHB, pg. 72).
Thus, a charmed enemy wishes you well, and will chat, advise, offer limited help, or advocate for you.
The spell suggests that you might convince a charmed fighter to hold back an onrushing dragon for a few seconds, but that’s a pretty extreme example and would certainly require the opposed Charisma check described in the spell entry.
A charmed enemy doesn’t automatically trust anything you say, but it “perceives your words and actions in the most favorable way” (PHB, pg. 209).
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The Sage is a mammal classified in the bear family, Ursidae, native to central and southern China. Debate continues as to whether he is truly a bear or more related to the raccoon rather than the bear, or perhaps in a family of his own. When not eating bamboo and answering rules questions, he works under the nom de plume of Andy Collins as an RPG developer in Wizards of the Coast R&D, where his development credits include Complete Mage, Dragon Magic, and the Player's Handbook v.3.5. He can be easily recognized by his large, distinctive black patches around the eyes, ears and on his rotund body.