A special abrasive made by Gray Blacksmith.
It was made to be suitable for physical Thanos' and Thanos'-AD weapons.
Both refine level and card are preserved.

[Gray weapon list]
Thanos Sword
Thanos Greatsword
Thanos Spear
Thanos Two-Handed Spear
Thanos Dagger
Thanos Katar
Thanos Knuckle
Thanos Hammer
Thanos Axe
Thanos Whip
Thanos Violin

[iRO Description]
A special abrasive made so that the general public can use the abrasive used by the Gray Blacksmith.
It was made suitable for physical melee weapons..
Both refine level and cards are retained.

[Target Item]
Thanatos Sword
Thanatos Greatsword
Thanatos Spear
Thanatos Long Spear
Thanatos Dagger
Thanatos Katar
Thanatos Knuckle
Thanatos Hammer
Thanatos Axe
Thanatos Whip
Thanatos Violin