Redstone mods

Redstone Monstrosity
This is a mob that attacks players with its hands. It can attack relatively frequently.
Spawn locations: Pillager Mines and Raid Omen bottles of level 1 or higher.
Mechanic: The Redstone Monstrosity is a fast and small mob that can move around and attack players unexpectedly.
Redstone Cube
This is a cube-shaped mob that attacks players similarly to a Slime.
Its spawning is not connected to raids. It can spawn in mines.
Mini-Boss
Redstone Golem
This is a mini-boss that could add more variety to the gameplay and make battles more interesting.
Spawn locations: Fortresses, Pillager Mines, and level 5 Raid Omen bottles during the final battle.
Boss
Redstone Monstrosity
This is a boss that could become the third major boss in the game. I think the Redstone Monstrosity would fit Minecraft well from a gameplay perspective.
Spawn locations: Fortresses and Pillager Mines.
Here are some mechanics that I think could be interesting:
Normal Attack attacks the player with its hands.
Area Attack  deals damage within a specific area around itself.
Beam Attack if the player is far away or at a high elevation, the Redstone Monstrosity fires a beam toward them.
Summoning  summons Redstone Cubes and Redstone Monstrosities.