Ad hominem logical fallacy. If you can't directly attack his logic, don't resort to saying he's wrong because he is <insert conveniently attackable quality here>. I didn't say he was wrong, I said I didn't agree. And I did not agree only because what he said was not founded. And I dont think the OP was just here to choose the most liked answer. He wanted "the" official answer to solve a conflict he had to face. Quoting the golden rule is way more constructive. By the way, I own the game in a foreign language : does the Rune mastery roughly says : When you attack with a rune weapon, you may exhaust this card to add 1 surge to the results ? Because this could mean you have to play it before rolling the dice...

Since Whitewing probably plays as a runemaster, I have to disagree with him. I think the fact of adding a surge to a result is kind of a part of rolling dice. The OL logic is good too. 1 - 1.