When dueling a player with a gravity hammer and you have an energy sword. The swing animation of the hammer counts as a melee duel (even before the hammer swing as hit the point of impact), thus the player with the hammer wins the duel due to the AOE damage from a hammer. This makes no sense gameplay wise since the sword melee animation is much faster than the hammer. When you swing a sword at a player with a regular weapon, the melee animation is just as fast so it makes sense in every other scenario other than the gravity hammer.
Please make the gravity hammer only do damage at the impact of the swing rather then during the swing animation when dueling.