cosmic encounter card sleeves FFG Insert (all expansions up to Odyssey, cards and powers sleeved) by galfridus It will cover all of the cards for both expansion and base game. 115x173mm Cosmic Encounter Sheet-50 pack,

As far as playability, Mystic Confluence only really sees play in Commander, although it's a true staple in the format, coming in at among the top 50 blue cards in the format according to EDHREC

Serra Ascendant Serra Ascendant is one of the best beat-down cards in Commander

A small sub-set of the cards were included in the Magic Online Cube starting November 27, 2024

If the user is a TCGPlayer affiliate and a content creator it will use that users affiliate code The height should be adjusted according to what kind of deck you are showing, decks without sideboard don't require much height while Commander decks take up a lot of vertical space