This is the mob-only version of the bramble datapack. If you want the bramble structure, that version can be found at https://modrinth.com/datapack/bramble-henge. If you want to add the bramble to the Lush Cave Ruins structure, that can be found at https://modrinth.com/datapack/lush-cave-bramble.

The Bramble

This datapack adds a custom earth-themed mob that is desinged to be vanilla-friendly in the vein of the blaze and the breeze. The bramble provides a unique parkour-based combat experience—do you have the platforming skill to take it down?

An animated bramble mob spinning

The bramble has the following behaviors:

The bramble will steadily float upwards as you fight, and will float more when damaged.
The bramble places temporary leaf blocks that you must climb to reach the bramble.
The bramble attacks by throwing a poisonous azalea bush into the air. You need to move before it lands!
The bramble slowly descends when not in combat.

Using the Bramble

If you want to use the bramble in your own structures/datapacks/whatever feel free to do so, and here is what you will need:

To summon a bramble directly, use the function keeb_mob_bramble:summon.
There are pre-set template pools keeb_mob_bramble:bramble/mob and keeb_mob_bramble:bramble/spawner for the mob and a spawner respectively: just use the minecraft:bottom jigsaw name.
There is a trial spawner configuration set for the bramble keeb_mob_bramble:bramble.

Additionally, if you want even more control, there are a couple of function tags you can use:

#keeb_mob_bramble:bramble/spawn is called once on a Bramble when it spawns
#keeb_mob_bramble:bramble/despawn is called once at a Bramble's last position after it despawns
#keeb_mob_bramble:bramble/die is called once at a Bramble's last position after it dies