Venuzdonoa

Reason Destroying Sword Venuzdonoa (理滅剣ヴェヌズドノア) is the demon sword of Anos Voldigoad which can destroy all things in creation and manipulate reason itself.

Overview
Venuzdonoa is a demon sword created by Anos Voldigoad which is capable of destroying all reason. When the sword is summoned, shadows gather on the ground and black particles rise up as a shadow of a sword reverses to form a dark longsword which shines darkly. Anos uses Demon King Castle Delsgade, which serves as a giant three-dimensional magic circle, to summon Venuzdonoa.

Abilities

 * Absolute Destruction: No matter how tough, eternal, or infinite something is, Venuzdonoa can destroy it. Venuzdonoa can destroy all matter, nullify magic spells, and erase people's sources. It can negate the immortality of gods and prevent any regeneration.
 * Logic Manipulation: Venuzdonoa is capable of doing illogical feats by destroying all reason. The sword can cause contradictory events to happen and make actions cause unintended results. It can destroy the orders and concepts which make up the world.

Feats
Venuzdonoa destroyed the reason that...
 * rewinding time before an attack would revert your body to an unharmed state, therefore allowing Anos to stop Ivis Necron from "regenerating".
 * dodging an attack meant you avoided the attack, therefore allowing Anos to hit Melheis despite Melheis dodging Anos' attack.
 * not cutting things meant they would not be cut, therefore allowing Anos to cut all of Melheis' thousands of decoy magic gates all at once without cutting them.
 * a person's attacks would hit the intended target, therefore making Jerga's own attacks hit himself instead.
 * Evansmana could not harm things which are holy, therefore allowing Lay to harm Jerga's magical body with Evansmana.

Weaknesses
Venuzdonoa can only be used near Delsgade, although magical things such as dimensions are irrelevant as long as the wielder is physically near the castle. A workaround for this condition is summoning Delsgade via Demon King Castle Summon . While Venuzdonoa itself does not have a time limit, the usage of  consumes an immense amount of magic power, so the castle can only be summoned for a limited time, restricting how long Venuzdonoa can be used. Furthermore, Delsgade takes some time to summon. Venuzdonoa can still be used without the wielder holding it in their hands, but it is weaker as a result. It can only show its true value when held.