Yes, Chris... that was not clear to me. That might work, IF you can make the attack alright.
But I just realized something. I don't think you have any Dimension Hops left, since you used a bunch of them with the rocks on the goblins. We never specified how many you used, but I would say it is assumable that you saved one of your four 2nd level spells, and you used that one to get on the wyvern.
In other words... you will have to come up with another plan. Dimension Hop doesn't go on endlessly.
And about the Axe: yes, it has a wooden handle.
