Yu-Gi-Oh Card of the Day (Cards Realm)

Yu-Gi-Oh Card of the Day is one of the challenges on yugioh.cardsrealm.com, a Yu-Gi-Oh deck and card database. Each day, numbered as Challenge of the day (#76 on 25 October 2026), it hides one monster card, the same for everyone, and a new one starts at midnight UTC with a countdown on the page.

You type a card name or open See list to pick from every possible answer. Each guess adds a row with the card's picture and five columns: summon type (such as Xyz, Synchro or Link), monster type (such as Sea Serpent or Dragon), attribute, level and the year the card first came out. A column turns green with an equals sign when it matches the answer exactly, amber when it is close, meaning a level one away or a year within two, and grey when it is far off. Level and year also get an arrow pointing from your guess towards the answer.

Only monsters can be the answer, since spells and traps have no level, attribute or monster type. Link monsters have no level, so two Link monsters match on that column instead of being compared as level zero. The pool is the 365 monsters most played in decks on Cards Realm, one per day for a year, and each guess is checked on the server, so the answer is not in the page.

You get eight guesses. Under the board the page shows yesterday's answer and a Copy result button for sharing. Below that are reactions and a comment thread for signed-in users. The page carries ads, including a banner above the game on a phone, and Cards Realm offers a paid premium membership.