Channel Fireball isn't just the name of a defunct gaming retailer/content producer - it's a famous combo where you can cast an early Channel, dump your life into the mana, and kill your opponent with a giant Fireball
What limits this Pokemons use is that to use its Move, it needs Fighting Energy
If you want to try to pick and choose winning Secret Lair drops from a financial perspective, perhaps the most important thing to look for is the number of cards in the drop
Morbid Opportunist
Other Rakdos themes include: goading, sacrifice, demons, devils, imp typal, dragon typal (Rivaz of the Claw), and chaos cards (Blim, Comedic Genius)
Saffgor: Zemo makes for an incredibly interesting Doomsday Commander, which to me seems like his natural home