We just finished Dragon Heist and the player characters have thousands of gold to spend. Not only do they have Trollskull Manor open for business as a tavern, but they're looking to buy a ship and invest in other businesses. There are rules for this in Dragon Heist and in the Dungeon Master's...
Maybe something like this would fit the bill, Nebulous:
Dreadful Choir (Recharge 6). The brains of the golem can occasionally work in unison to create a loud telepathic scream, usually in reaction to being threatened or frightened. As a reaction to taking damage, the brain golem may unleash a...
Good idea Nebulous... what kind of power would this big crazy agglomeration of brains have? Maybe like a moment when they all shout in unison, causing big pain to everyone who can "hear" them?
I'm blogging! I did an entry about brain golems, the weird mind flayer creations with weird and wonderful accompanying artwork. I put a new spin on these old monsters to give them more purpose to a mind flayer colony. Take a look...