Super Cyber Beast

Grezar (グレイザー) is the combination of the two Cybeasts Gregar and Falzar.

Anime
After the battle between Gregar and Falzar in episode 24 of Rockman EXE Beast, Lord Wily of Beyondard uses Trill to combine them into one, creating the super Cybeast Grezar and using it as his vessel. With his new body, Wily attacks both worlds. Grezar and Wily were deleted by MegaMan in episode 25, and the portal between the two worlds is closed. In Rockman EXE Beast+, the Professor tries to revive Grezar again and deleted for good.

Manga
When Gregar and Falzar awakened, they combined into one Cybeast when they faced each other. With his new powers, it is able to appear in the real world and begins to absorb the Earth. MegaMan and Bass fight against it to save the world.