The archetypes primary guiding voice was historically great deckbuilder Mike Long who actually went on to win that Invitational with Keeper, albeit with both copies of The Abyss in the sideboard
Casting the Gearhulk is a bit tricky, but the ability to grab two more cards, potentially two combo pieces or toolbox pieces, makes this card a great pick in plenty of decks
It looked like it would be useless, but I found that even with a small board state, it can get out of hand quickly and even on its own, it doesnt take long for it to become a solid beatstick, as it initially blocks as a 2/4, attacks as a 4/6 which doesnt even count other creatures which also just get huge
This ability isnt incredible, due to its restrictive cost, but it really doesnt need to be
And why limit ourselves to just clues
The Ghost Eraser movie series has a shoutout to Ghostbusters in the title and features trainers named "Kadath" and "Arkham"