You can rewatch this video to see this: The artwork of the cards on the back of the box that either feature: Grass Energy, Charmeleon, and Fire Energy For Bushfire Grass Energy, Ivysaur, and Water Energy For Overgrowth Fighting Energy, Onix, and Water Energy For Blackout Lightning Energy, Pikachu, and Psychic Energy For Zap
I don't actually recommend Doubling Season because it's overcosted if you only use half the card More Counters on Themselves: Avenger of Zendikar especially if you add more fetchlands and land ramp, also Taurean Mauler is a worse Managorger Hydra but still amazing with our commander Draw: The Great Henge, Tribute to the World Tree, Esper Sentinel Ramp: Kodama of the West Tree, Defiler of Vigor, Biophagus Protection: Shalai, Voice of Plenty, Deflecting Swat, Bolt Bend, Heroic Intervention, Teferi's Protection, Clever Concealment, Silkguard Combos: Heliod, Sun-Crowned and War Elemental do the same thing as The Red Terror
If youre relying on tap abilities, a card like Well Rested is interesting, allowing you to put two +1/+1 counters when untapping the enchanted archer
The 2 in a yellow box came in a plastic wallet, so I assume are rare
Sarulf exiles cards rather than destroys them so that your choice is only whether to trigger Ragnarok, not evaluating whether Sarulf would end up bigger after using its ability