who uses the ice barrier deck in yugioh (Wings of Guardians) | Ranked Duels 👑 Georgius, Swordman of the Ice

Extra cards are included for Tokens, Vehicles, Split cards, Dual Faced cards, Conspiracies, Dungeons, Sagas, Emblems, Schemes, Backgrounds, Legendaries, as well as 3 blank cards for further custom organization

Its partially because there are better things to be doing in mono-blue (if you want to focus on fast consistent wins, that is), but I do think Cosima can offer a lot, particularly if built around

Evolution Witness allows you to return a permanent card from your graveyard to your hand whenever a +1/+1 counter is placed on it

[Lightning] Shocking Smash Flip a coin

Because Humans are in every colour, they're a brewer's paradise