Raikegan

Raikegan (Raakeigan) is the Xin ability used by Redness Grein and his son, Shideo Grein. The Raikegan ability is one of the newest Xin abilites in the past century and is a specialist type technique.

History
During his teenage years, Redness first saw a yoyo at the local mart. As he went back home, he thought about inculcating the properties of this toy into a Xin ability. He sat down on a riverbank and swore to not return back home until he had successfully constructed the base of the ability.

Redness returned back home to an emotional renunion after half an year, during the time, he had accomplished his goal and formed the basic structure of the Raikegan.

Later, Shideo Grein learns the technique as part of the will of One King For The Treasure of Thieves.

Usage & Users
Raikegan was first created by Redness Grein, this Xin ability has two parts, the first part is when it releases a long rubber type formation similar to that of a hook, when it grabs a hold of anything, it zips back to the user and at that instance a giga energy strike is formed.

Redness Grein
Redness had constructed the ability at a young age and due to this, he powered up Raikegan to an incredible extent. Redness refused to teach anybody the Raikegan and preserved it for his son. This ability was part of Redness's main deck and would always be a final move to defeat his opponents. Even Smile was cautious in brawling with Redness because of the high reputation of the Raikegan. Ban claimed he had tried fighting Redness five times and all five times he had lost because of his ability. It goes to show that Redness was very skilled with the Raikegan.

Shideo Grein
Comparitively Shideo hasn't mastered the Raikegan but he has improved on its usage. Shideo can't travel far distances with the ability just yet and his giga strike isn't even 50 percent to that of Redness. He also doesn't have the clear visual structure of the Raikegan so it is difficult for him to keep balance. Considering all of Shideo's feats, his utilization of the Raikegan will be better over time.