The Nexus of Reality was constructed a the center of the Earth by Brainiac. He intended to use it to transform the Multiverse into a singular, unified reality…before he was interrupted.

nexus of reality
BRIEFING	LOCATION
Nexus Admin Log: Construction Begins	1
Omega 2	2
Unauthorized Entry	3
Fatal Shutdown	4
New System Administrator	5

Reward:
Primal Defender: Hands