When equipped with Thanos Greatsword-AD:
Increases damage of Wind Cutter and Servant Weapon by 25%.

For each 2 Refine Levels of equipped Weapon:
Increases melee physical damage by 6%.

When equipped with Thanos Axe-AD:
Increases damage of Axe Tornado and Axe Stomp by 25%.

For each 2 Refine Levels of equipped Weapon:
Increases damage of Axe Boomerang by 12%.

When equipped with Thanos Spear-AD:
Increases damage of Hesperus Lit and Overslash by 25%.

For each 2 Refine Levels of equipped Weapon:
Increases damage of Overbrand by 12%.

[Bonus by Grade of Headgear]
[Grade D]: POW +3
[Grade C]: P.ATK +3

[iRO Description]
When equipped with Thanatos Great Sword-AD [2],
Increase Wind Cutter and Servant Weapon damage by 25%.
For every 2 refine level of weapon, increase melee physical damage by 6%.
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When equipped with Thanatos Axe-AD [2],
Increase Axe Tornado and Axe Stomp damage by 25%.
For every 2 refine level of weapon, increase Axe Boomerang damage by 12%.
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When equipped with Thanatos Spear-AD [2],
Increase Hesperus Lit and Overslash damage by 25%.
For every 2 refine level of weapon, increase Overbrand damage by 12%.
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[Headgear Grade Bonus]
[Grade D] POW + 3
[Grade C] P.ATK + 3