Quantum Cube
The Quantum Cube (量子キューブ Ryōshi Kyūbu) is a mystical object of great power used by Aigami in Yu-Gi-Oh! The Dark Side of Dimensions. It originally belonged to Shadi.
History
Shadi had used it to kill an abusive man who once lived with some orphans, including Aigami, Mani, and Sera. After his death at the hands of Yami Bakura, Shadi handed the Cube over to Aigami.
Aigami later used it to disintegrate Kudaragi and his gang, and used it to teleport from the mall to Egypt, where he disintegrated a KaibaCorp employee, and attempted to kill Kaiba with it, albeit unsuccessfully. He then transformed it into a Duel Disk to Duel Kaiba, and later against Yugi.
After Aigami's defeat, Kaiba took possession of the Cube using it to enter the afterlife and Duel Pharaoh Atem.
Abilites
Using the cube, Aigami can transport people to an alternate dimension, where they will gradually dissolve into nothingness or he can use it to erase people directly. It can also be transformed into a Duel Disk.
It appears to operate similar to KaibaCorp's virtual technology, as Seto Kaiba mocked his effort to disintegrate him with his own power and counteracted it.
