Soul Squad is an expansion upon one of my first origins addons, Poltergeist. it contains poltergeist, along with a new origin Hivemind.
Poltergeist is an origin that makes you into a block possessing spirit. You can go around the world possessing blocks, each block has a mining level and attack damage. Some blocks even have Unique powers.
The poltergeist has 2 forms; The spirit, and the possessed forms.
As the spirit, you cant interact with the world, but you can phase through blocks. you cant break nor place blocks.
As the possessed, You can interact with the world, as you have a corporeal form.
The poltergeist, not having a living body, cannot use tools, nor armour, since their "body" is a block. Instead they gain the properties of the blocks they possess.
By pressing the [Primary] key whilst inside of a block, you will possess that block, gaining its abilites. If you are possessing a block, and you press [Primary] you will un-possess it, and leave it where you were standing. Also, if you press [Swap block with Hand] whilst crouching and holding a block, you will swap to the block you were holding.
The possessed form of the poltergeist causes wear on the blocks over time. when possessing a block, depending on the material, you will have more/less time as that block before it breaks. When a block breaks, it is gone, you have to make a new block in order to repossess it.
The Hivemind is a more human-like origin. You spawn seemingly as a human, but with 1 less heart, and the hearts are purple? Using your active ability, you can create new bodies, at the cost of some of your max health.
[Primary] Create an alternate body [Open Body UI] Open the body selection screen
The main characteristic of the hivemind is its ability to spread itself out in multiple locations, and your soul can freely travel between the bodies regardless of distance.
Beware, whilst these bodies have their own inventories, health, hunger, etc, they are still a player even when you aren't possessing them. Mobs will attack an unprotected body.

A group of soul-based origins for the Origins Mod