Ohma Zio Shaiver/Kurama

Brother: Lord Drakkon Satori/Zack

Unmask: Shadow Lord Zack/Satori

So they have power and abilities of EVERY version of themselves throughout the Omniverse. They all their weapons, Access to every form, fighting styles, but on a BIGGER and stronger scale, They have power of King Multiversal, Omniverses, Protectors, Time Gods, Superior Demon Race, Angels, Gods and many more, like absorbing their power and yet adaptating to any Omniversal threats. Fun that there like POWERFUL version of any of those 2 versions are. 

That their armors are like fused with every dragon emperor and Kamen Rider