Airbending isn't exactly intuitive
And you have a 3/3 body on the field as well that comes with it
This includes bundles, Commander decks, collectors, and set boosters
I always recommend price-checking any bulk you try to sell, but not everyone does that, so its possible for valuable cards to slip through the cracks
Tapping for colorless isnt the biggest drawback, especially in a mono-colorless eldrazi Commander deck, but the graveyard ability doesnt make up for the general blandness
Similar to Pokmon and One Piece, a lot of Digimon sets explore the same characters in different settings, so theres a lot of art depicting the same thing in different stances, or with a new physical experience