To become a Viltrumite you will have to put on the 'Pure Smart-Atom's Injector'.

In order to gain levels as a Viltrumite, you will have to take massive damage for each instance. The higher the damage, the more experience you gain. Or, alternatively, simply do physical training such as running, jumping, and punching mobs.

If you don't know how to install Lucraft addons, please watch and finish this video.

https://www.youtube.com/watch?v=d36qSLCkmXI

All the dependencies required.

https://www.curseforge.com/minecraft/mc-mods/lucraft-core
https://www.curseforge.com/minecraft/mc-mods/electroblobs-wizardry
https://www.curseforge.com/minecraft/mc-mods/the-fifth-world
https://www.curseforge.com/minecraft/mc-mods/tickratechanger

Recommended mods(also half depencies).

https://www.curseforge.com/minecraft/mc-mods/speedster-heroes

https://www.curseforge.com/minecraft/mc-mods/heroesexpansion

https://www.curseforge.com/minecraft/mc-mods/attributefix

https://www.curseforge.com/minecraft/mc-mods/classic-bars

FOR BEST EXPERIENCE USE JEI (JUST ENOUGH ITEMS) MOD!!!!!!

invincible addon