Like most Magic: The Gathering cards, the value of Hero of the Games depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Theros Beyond Death)
Some cards enchant a creature and add a +1/+1 counter, so these are a good starting point
2 Green: Marwyn, The Nuturer Nuture Elves, Get More Elves are one of the strongest creature types in commander, with Marwyn, the Nurturer one of the best commanders for Elves and the best when it comes to mono-green
Contents: 30 Play Boosters
"Looks like you'll have to rethink the way you train," smiles Brock as he and Misty gather around Ash, seemingly enjoying his pain from the looks on their faces
Though inexpensive, they provide great first-level protection against scratches, dust, fingerprints, and minor bends