Ensure the seller has good ratings and provides detailed listings
That said, Rex, Cyber-Hound could be just the energy commander for you if youve got friends running Experiment Kraj or Zirda, the Dawnwaker deck
Let me know in the comments, or over on Draftsims socials
Each deck also has a unique and suitably themed mechanic: Survival decks, for instance, can sacrifice Junk tokens to play cards off the top of your library, while Mutants can use Radiation tokens to attack other players by milling cards from their library and dealing damage
The funny thing is, people immediately knew how broken Baylen, the Haymaker would be, and yet this Boros enchantment doesnt get the love it deserves
Last but not least-ly, it also ramps you converting three red mana into four red mana