Whenever a creature with a bounty counter on it dies, each of its controller's opponents draws a card and gains 2 life
With that said, none of those have two card types, nor can they shove a land in your graveyard to activate Delirium at instant speed
The original idea featured the serialized golden chocobo along with the four colorful chocobos, each themed around the FINAL FANTASY VII chocobo-racing minigame
Even without a strong life-gain theme, this is still a great late-game mana sink
You could look to this team up to cheat in massive legends, like Drakuseth, Maw of Flames, or keep things lean, focusing on cheap legends like Thalia, Guardian of Thraben that help you curve out and get haste quickly
Want to try it for yourself