The Motherlode, Excavator + Sentry Bot The Motherlode, Excavator often ETBs with a massive amount of energy, so this red robot has to make a difference in your EDH deck
Expensive Expansion Symbols Some Magic expansions are known for their good value , because they include a lot of expensive cards
Jet Medallion, Bolass Citadel, draw spells, tutors, and black cards that lack colorless requirements in their mana costs tend to work best with Krrik, as they help you stretch your mana and card access into ridiculously explosive turns that can win you the game on the spot if your opponents dont have access to any interaction
Source Material Cards For each one of the 61 Avatar: The Last Airbender episodes, theres a different source material card
It popped up again with the Commander Legends: Battle for Baldur's Gate commander decks in 2022, especially with the white-black Party Time deck focusing specifically on the mechanic