That would depend on what you think a warding is. What you call tied off weaves on her windows seem like wards against the heat to me. Wasn't there discussion about what Demandred considered defensive wardings during the Cleansing? In that discussion, I was pretty sure that some were basically defensive shields while others might have neutralized heat, static build up or the other effects the Power might be channeled into as a weapon. After all, the Aes Sedai consider their tied off weaves keeping rats out of the Tower to be Wards, but those are basic effects that are synonymous with weaves causing rodents to stay away.



He could have. IMHO Graendal and Rahvin were quite similar, so this scene actually played out quite similarly to how Rahvin's fight with Rand turned out except I think Graendal fled before Rand could attack, which would reveal the downside of using the Power as a massive weapon.

Basically, and once again, IMHO, the only and best way to be sure an opponent is killed is to balefire them before they can react. The One Power is much too limited and it doesn't really seem designed for destruction the way other magical systems are. I would have actually been more impressed if he used his Travelling Talent to open a gateway to her and balefired her without even stepping through.