Choose the right weapon design to deal more damage.
More bonuses not always mean more damage.
(For example, basic dragon axe deals more damage to shadow enemies than silverbonus double axe.
The former has +13 shadow bonus, and the latter has +11 shadow bonus.)

All epic weapons are better than normal weapons due to assembling parts.
Well, some epic weapons are worse than even normal steel weapons.
(Those epic weapons are composed of copper, bronze, or iron.)
However, unique epic weapon bonus compensates it.
(For example, if an epic weapon has +5 fire bonus...
It actually offers +30 fire bonus because the bonus is applied to all weapons.)
Even though an epic weapon breaks during the battle, the bonus will remain.

Boost bomb lasts only 1 round. Use it just before charging the enemy.