Note: I'm not trying to make money off of this. None of this is mine other than the wank. All rights go to Tsuburaya Productions and the the Ultraman Fandom. I know this isn't a battle but inspired by other people making profiles like these I joined in.
Ultraman Nexus (ウルトラマンネクサス)
Boundless+ Fights spacebeasts, creatures who transcended the Concept of Dimensions, Infinite Higher Planes of Existence/Worlds, Space-Time, Life and Death across all existence on a daily basis
Boundless+ fought and defeated Dark Faust and Mephisto, beings who are a threat to every imaginable existence and the beamlock between him and the latter shook and nearly destroyed every imaginable existence.
Boundless+ his final battle with Dark Zagi sent shockwaves which erases 500 trillion existences every nanosecond. After Nexus won, he rebuilt everything with his pinky.
Boundless+ breaks the utter physics of the meaning of transportation and speed himself, is faster than existence.
Boundless+ created evrey existence imaginable with his flick of his wrist
Boundless+ Forced Dark Zagi down to his knees
Boundless+ shatters the physics of durability, but if that isn't bad enough, he has immortality (all types) and a evolution ability born with him where the more punishment he takes the powerful he becomes
Range-Boundless+ can reach anything at everywhere, traveled to another existence to save Ultraman Zero from Arch Belial
Cross-Ray Schtrom-a + shaped ray that one shotted the Living Tribunal, TOAA, Beyonder, The Prescence, The Writer, and Azathoth and still delete 30 magniverses.
Over-Ray Schtrom-a L shaped ray that is so powerful it can break down the molecues and delete anything it hits, even fiction or non fiction
Core Impulse-a beam fired from Nexus' chest, broke the rule of Toon force and vaporized every Toon force character in this existence.
Arrow-Ray Schtrom-a powerful arrow that unlike the over ray schtrom, destroys the target it hits.
Schtrom sword-Nexus can create a blade of energy from his hand and said blade can cut through 10 existences in a single swing.
Over Arrow-Ray Schtrom-by combining the Arrow-Ray Schtrom and Schtrom sword, Nexus can create a more powerful and destructive version of the Arrow-Ray Schtrom, it leaves flames hotter than the meaning of heat and can only be stopped by Nexus' own willpower
Particle Feather- Nexus Launches small triangle shaped energy blasts that can disintegrate anything it touches, even if target is intangilable/untouchable
Board Ray Feather-Same as above but bigger and more powerful
Meta Field-a special field where Nexus tends to fight in. When fighting in the field Nexus becomes 6.706e+8 times more powerful.
Noa Inferno-A powerful beam from a fire covered fist that can shatter the meaning of heat and melt anyone whose name is not Dark Zagi
Lighting Noa-A beam so powerful that even Dark Zagi can survive it
Noa The Final- A powerful surge of energy that can even reset or destroy every existence
Dimension Noa-Noa uses this to travel to anywhere he desires, even to alternative realities
Ultimate Noa-What it does is yet to be revealed
Like the average Ultra, Nexus is skilled in combat
Core Final-Nexus' ultimate technique. It can do multiple things such as resurrect Nexus, make him evolve, or free him from any incapacitation. Whatever it does, it only activates once Nexus is in danger.