Converting D&D/Other Adventures to DFRPG

[sir_pudding]

Originally Posted by restlessgriffin

Is that House Rules or is it from one of the multitude of GURPS Dragons books/PDFs?

It's not a houserule for the void wyrm.

It can “power-parry” attacks, even if insubstantial or energy-based, with Parry 17*; if successful, roll 3d, subtract that from the basic damage, and apply it as damage to the weapon or unarmed attacker!

AFAICT it's not a rule for other dragons, expressly. Although, personally, I had already used it for other dragons before I wrote "More Psionic Threats".