*THIS GUIDE ESPECIALLY FOR PLAYER THAT DO NOT HAVE EFFORD TO BUY MJOLNIR AND MAGINGJARD*
Weapon also play a main role to increase your attack-damage. Common weapon for champion are Mace and Claw/Knuckle. Mace  and Barrage Fist /Waghnak  will be a choice for player to use it. Mace  is a weapon level 1 as well as Waghnak . Meanwhile, barrage fist  is a weapon level 3. Locally, high weapon level, mean high attack-damage. But, it not like that. Before that, let us revise the characteristics' of Mace and Barrage Fist.Mace 
Required Lvl 2
Weapon Lvl >1
Barrage Fist 
Required Lvl 60
Weapon Lvl 3
As you can see Mace Attack more high than Barrage Fist. Plus, if you see Weapon Type vs Monster Size Tableat RateMyServer, Mace more powerful than Barrage. I already tested Mace  and Barrage Fist  + 4 Skeleton Worker Card respectively to Zombie Prisoner [Medium Size Monster] and I found that Mace or powerful that Barrage Fist. Even Barrage Fist Weapon LVL 3, Mace more powerful. However, I try both weapon to MVP-Room and i found it is vice versa. Barrage Fist are more powerful that Mace[ 4 Abysmal Knight Card]. Even at Weapon Type vs Monster Size Table show that
Mace = Small 75 Medium 100 Large 100
Claw/Knuckle = Small 100 Medium 75 Large 50
still Barrage Fist more Powerful than Mace.
From my observation, for MVPing better use Barrage Fist meanwhile Mace for Hunting, PVPing and WOEing. Because all characters are Medium Size.