In Jeffs case, the cards that might have caught Konamis watchful eye is Blue Dragon Summoner (a spellcaster monster who, when sent from the field to the graveyard, allows you to add 1 Dragon, Warrior, or Spellcaster monster to your hand), or Selene, Queen of the Master Magicians (a link monster that gains spell counters for each spell on the field and in either graveyard
I imagine every Captain Howler EDH deck looks a little different, with slightly different goals for how they want to leverage it, and that sounds like a fantastic commander
Another very critical part of leveraging stax pieces is avoiding nonbos and making sure you can break the symmetry
As part of the February issue of 1998, Ciao released these playing cards to promote the manga series Pokemon PiPiPi Adventure (with the three ps abbreviating the cute characters contained within the story: Pikachu, Pippi (Clefairy), and Pudding (Jigglypuff))