It provides space for all game cards, tokens, and Investigator Mini-cards from the core game
Alpha Deathclaw Angel of Despair Argentum Armor Assassin's Trophy Awaken the Maelstrom Bahamut, Warden of Light Beast Within Beast Within Clay Golem Combustion Man Desert Twister Despotic Scepter Generous Gift Giant Mana Cake Goblin Firebomb Hydroblast Jalum Grifter Karmic Justice Lexivore Lux Cannon Meteor Sword Necrotic Sliver Pentarch Paladin Pyroblast Ragnarok, Divine Deliverance Reaper King Rise of the Eldrazi Spine of Ish Sah Staff of Compleation The Most Dangerous Gamer Tornado Ugin, the Ineffable Ulamog, the Infinite Gyre Universal Solvent Unstable Obelisk Vindicate Wild Magic Surge
In Yu-Gi-Oh Duel Links, it appears as one of the cards randomly given when you win against Z-one, so you can actually put it in your deck if you want
Back that disruption with Supersonics Confusion and a clean 60 damage Wing Attack and you have a control piece collectors still chase
Because it is an asset, it can be used by setting it up in advance, and since it does not run out, it is possible to draw money by triggering it in succession at the appropriate timing
Games always have those nice Profile menus that will be displayed when you fight against other players, which is a nice little feature