While mana rocks, mana dorks, and land ramp are some of the most common forms of ramp you play against, cost reducers are a class in and of themselves that deserve respect
All five enemy-color fetch lands appear as Special Guests cards, with non-foil versions showing up in Play Boosters and traditional foil versions showing up in Collector Boosters
Searching up your key combo pieces is great, and the untap effect can provide a burst of mana or an extra Agathas Soul Cauldron activation as needed
While Ratchet Bomb isnt a Modern staple, it does see play, often in colorless decks lacking removal options, as a Karn, the Great Creator tutor target or in mono-colored decks that cant easily power up Engineered Explosives as an answer to Urza's Saga tokens
Add in a few flicker effects to reuse your best ETB triggers once you get going, and your opponents wont know what hit them until its too late