[Gregstrom]

This is a top-notch question - I don't know all the answers to this, and I'd definitely like to find out.

IIRC (and take a pinch of salt with this): Luck, Awe and Ethereal take effect before the -2 defence is applied.

BV takes effect after damage is rolled, but before armour, resistances etc. are applied to the roll. I would expect this to include the mistform effect (but I haven't tested it).