Hello boss !
In Battle for Zendikar, when filtering by color Blue, you see Benthic Infiltrator, but not Adverse conditions. Almost all Devoid cards are considered colorless even you need blue mana to play them ... Is it a good idea ? Why ?
Nice job !
I actually followed what scryfall consider for the color. It was a long debate some time ago. You can still find them with advanced search by using the mana cost filter