Loot!
Sparks flew as the metal of William's Abyssal Weapon Shifter dug into the equally dense metallic surface of the Treasure Mimic. A one-centimeter groove formed in the Treasure Mimic's casing where the greatsword struck, but the weapon was moving much slower than William anticipated.
He shifted his weight, leaning over and placing his left arm over the dull end of the greatsword. The additional force was enough to cut another two centimeters, but the Abyssal Weapon Shifter bent slightly, as if it was a metal spoon scooping ice cream.
The Treasure Mimic tried to pull away from the greatsword, but William's pressure was locking it in place. Treasure Mimics didn't have much movement ability, this one barely reaching the Ascension Realm.
Its strength wasn't much different, other than its bite force. Even if it entered the Deity Realm, the Treasure Mimic likely still wouldn't be able to pull away.