Board Thread:General Discussion/@comment-36293046-20190417003257/@comment-32440156-20191012041739

Dude, regeneration isn't necessary for Absolute Immortality. The page states that the user cann simply be immune to all harm which infinite zamasu was as it was the invincible soul of merged zamasu. And immunity to diseases? You are joking right? Tell me what kind of diseases can infect an invincible soul?

And yes being more powerful than super shenron does indeed qualify as Nonexistence. Super Shenron has Absolute wish which is an expression of Omnipotence and zeno's "erase" ability surpasses that, automatically making him a user of Nonexistence.