He is, essentially, an add on effect to your creatures (including himself) to grab your opponents cards when they make contact with their faces
For example, if an opponent lost 1 life, the first one's triggered ability to resolve causes them to lose another 1 life
For example, a Naya (green/red/white) commander means you can only play green, red, and/or white cards in that deck
In addition to Magic: The Gathering Arena, games like Hearthstone (developed by Blizzard) and Gwent (initially a mini-game in The Witcher 3 before becoming a standalone title and even a board game) have successfully translated TCG mechanics into the video game space
Our prior visit to the plane left the day and night cycle in disarray
Doubling Season sees competitive metagame play in 1 format(s): Commander