Welp, okay. Since this doesn’t specify which Low 2-C Ren, I’m assuming it’s Late-Game.
True Shido/Samael > Shido/Samael > Human Sacrifices = Goro Akechi >> Late-Game PT (Heist7) > Oberon > Atavaka > Hanuman > Kali >> King Frost >>> Baphomet > Sae/Leviathan > Parvati = Kurama Tengu = Titania > Cerberus > Heist6 PT > Skadi = Ganesha > Norn > Jatayu > Execurobo MDL-ED >> Rangda > Mid-Game PT (Heist5) >>> Okumura/Mammon > Girimekhala > Kumbhanda >> Cognitive Wakaba > Mithras >> Heist4 PT = Belphegor > Thoth = Kaiwan >> Anubis > Kaneshiro/Bael >>> Heist3 PT > Take-Minakata >>>> Madarame/Azazel > Sui-Ki = Rakshasa > Kamoshida/Asmodeus > Heist2 PT > Orthrus = Shiki-Ouji > Heist1 PT = Nue > Eligor >> Archangel >>>>> Berith = Angel >> Succubus > Silky = Kelpie > Cait Sith = Incubus > Bicorn > Agathion = Mandrake > Pixie = Jack-o-Lantern (Baseline) = Low 2-C
This is the current Low 2-C Persona 5 Scaling chain, so even if we go with first Palace Ren, he’s sizably stronger then baseline.
Ren resists all of the elemental abilities, can bypass barriers with Almighty attacks that are AOE, resists Reality Warping, BFR, Matter & Biological Manipulation, Soul Manipulation, all Status Effects can be negated with Detox, any stat amps/debuffs Nere tries will be met with Dekaja/Dekunda, or his own stat amps/debuffs, Attack Reflection can be dealt with by his own Attack Reflection, leaving only a couple (unspecified) powers like Absorption being something Ren can’t counter. As for Gravity Manipulation, Ren has universal lifting strength, so pinning him down will be ineffective, if that’s what it does.
How does Nere respond to thought-based AOE deathhax that spawns directly on you, that targets the mind, soul, information, and concept? Similarly, he can nullify as his magic (and other stats) with Binds, which is also thought-based, and the strongest of them, Salome’s Kiss, nullifies someone’s AP, Speed, and Magic. He can also mindhax someone with Despair, which makes you kill yourself, Sleep, Hex (every hit you do to Ren is done to you), etc.