Origins: Planeswalker Reborn

A race of space-time manipulators who escaped the Void, reborn with new powers and a home dimension built for traversal and duels.

Core Abilities

Planewalk: Main key while sneaking. Place/remove a tether that sends you to the Void when you move a set distance away, and returns you safely when possible.
Phaseshift: Main key while not sneaking. Become intangible to entities (and vice-versa) while a resource bar drains and recharges.
Dimensional Rift: (3s CD) Secondary key while not sneaking. Your next attack on a block makes nearby blocks intangible.
Void Duel: (4s CD) Secondary key while sneaking, then punch an entity to drag you both into the Void for ~10s before returning to your original positions.

Spatial Stride: (4s CD) Brief creative-style hover (~0.35s) with Speed II and fall-distance reset.

Soulfood: Food gives no nutrition; XP orbs feed hunger (and saturation). Bottles o' Enchanting consume XP first, then hunger if you're dry.
Void Veins: Healing is halved in the Overworld; normal in the Void.
Insomniac: Sleeping doesn't prevent phantoms and wipes 16 hunger.
Overspecialization: Cannot use shields, chorus fruit, or ender pearls.
Corrupted Blood: Immune to most vanilla medicine (milk doesn't clear effects).

Original mod by SciRave: https://www.curseforge.com/minecraft/mc-mods/origins-the-planeswalker
This is an unofficial 1.20.1, 1.20.2 and 1.21.1 port/fork; all credit to the original author.