Mind Blank and Buffs

[Yorae]

Mind Blank says that it "protects against all mind-affecting spells and effects" -- does this apply to spells and effects that are "(Harmless)", like Heroism? The question came up and I wasn't sure, since it uses the "protects" verbiage.

[tyckspoon]

Yes. You are unable to be affected by Mind-Affecting, including positive effects like Heroism and bard song. There are a few Mind-blank like effects that are discriminatory and let you choose to let in buffs, but they tend to require a heavy investment in class levels.