To cast adventures with discover, both the card and the adventure part of it have to be equal to or less than discover X
You need nonlegendary enchantments that do something on entry, or enchantment creatures, to get any kind of benefit
Imagine every time you want to build a new deck, you have to sift through those hundred (or maybe thousands) or cards to find the ones you need
Of course, Kibler is also not afraid to mix it up on people, and this list took a page out of the Eric Tam playbook, splashing a fourth color off of City of Brass and Birds of Paradise
They recognized that the prominence of the top Red decks was starting to make the game less enjoyable for players
Once they're in the game, they're in the game