Good question.
Good replies.
Oakenmir has mega hit points, and good swat damage.
Dragon has flight, claw, claw, bite. Plus fire. But far less hit points.
Oak can sumon friends to take the heat, while he swats the wings from the dragon.
Dragon no longer flies, has Oak plus 4 friends swatting him.
Oak and company create dust storm from so much swatting.
Dragon breathes, trees flame up with aided air fro swatting.
All scream in horror.
Oak who has more hit points would win. Remeber, he is Kerah's favored, therefore, he would again be bathed in blood, Dragon blood that is. (Sorry Wyv).
Felix The Retired Master Assassin