The same goes for Planeswalkers...you have Ajani, Valiant Protector who throws around +1/+1 counters and Elspeth, Sun's Champion
So, when you want to play a card, you exert (a term similar to tapping in Magic , but due to licensing rights, other authors have to come up with strange terms

Acorn Catapult Alliance of Arms Arcane Artisan Ashling's Command Atlantis Attacks Bloodvial Purveyor Brigid's Command Casey & Raph, Hotheads Caught in a Parallel Universe Combat Calligrapher Cybernetica Datasmith Dark Salvation Death by Dragons Descent into Avernus Dovescape Echocasting Symposium Edge Rover Elephant Resurgence Elephant-Mandrill Emeritus of Truce Goblin Spymaster Gonti, Night Minister Gravedig Greener Pastures Grismold, the Dreadsower Haunted Angel Hold the Perimeter HumanTime Lord Meta-Crisis Inscription of Insight Jolene, the Plunder Queen Kamahl's Summons Kibo, Uktabi Prince Kozilek's Command Liege of the Hollows Marching Duodrone Mogg Infestation Nantuko Shrine Nettling Nuisance Oversimplify Party Dude Plague of Vermin Prismari Command Pure Reflection Rankle and Torbran Relic Robber Rendmaw, Creaking Nest Rite of the Raging Storm Rootcast Apprenticeship Sarkhan the Mad Shadrix Silverquill Splinter & Leo, Father & Son The Dining Car The Pit The War Games Tombstone Stairwell Varchild, Betrayer of Kjeldor Verdant Command Waiting in the Weeds Warren Weirding Water Gun Balloon Game

When a player has 10 or more poison counters, that player loses the game
Compact single-card design, perfect for collectors and players alike
Commander sacrifice-heavy aristocrat decks will likely crack this case in no time flat, and enjoy the whole process