Double Axe

The Idea is simple. Double Axe stacks itself so you want it as fast as possible. Especially with Dragon Claws to get more attack speed while in Battle Rage.

Oil Lamps help with more damage and accuracy.

Anvil wants to be surrounded by crafted items.

Generated Gems of Box of Riches can be crafted fairly easy to generate Flames.

Dragonskin Boots are really good against Cold.
Dragon Claws are really good against Poison.
Spike Collars extend your Battle Rage.
Cap of Discomfort against Burst Damage and nullifies buffs.

With Mana Potions will trigger hopefully in your battle rage and you'll be invulnerable for a long period of time with enough potions and King Crowns or Glowing Crown.

It's really important to have strong Gems on your Axe.

Yellow gems gives more attack speed.
Red gems allow you to heal yourself more
and blue gems can ingnore armor.

Gems in King Crown are more valuable.
You can use red gems for more healing. Purple gems for anti heal or green gems against poison.