Full database
Every revealable monster in the game
The tool compares your monster with every Main Deck monster that has a defined ATK, using a database updated daily from YGOProDeck.
Free tool
Pick the monster you reveal and see every monster it beats, ties with and loses to.
Your goal
Reveal a monster with a higher ATK than the opponent's: it is added to your hand.
Monster you reveal
Search the monster you would reveal from your Deck with Subspace Battle.
Blue-Eyes White Dragon
3000 ATK
Share of the 7131 monsters the opponent could reveal.
Your monster is added to your hand; the opponent's monster is destroyed and they take 500 damage.
Full database
The tool compares your monster with every Main Deck monster that has a defined ATK, using a database updated daily from YGOProDeck.
Exact rule
Monsters with "?" ATK and Extra Deck monsters are excluded: Subspace Battle cannot reveal them.
Your decklist
Import your deck: the tool ranks your monsters by ATK and shows the share of the game's monsters each one beats.
Subspace Battle is a Normal Spell that applies the same effect 3 times in sequence: each player reveals 1 monster from their Deck that does not have "?" ATK.
The monster with the higher ATK is added to the hand of the player who revealed it; the monster with the lower ATK is destroyed and its owner takes 500 damage. If tied, both monsters are shuffled into the Decks.
The trade-off: for the rest of the turn, neither player can activate the effects of monsters with any of the revealed monsters' names. Keep it in mind when choosing what to reveal in your Yu-Gi-Oh! deck: the monster you win joins your hand, but its effects are locked this turn. You can only activate 1 Subspace Battle per turn.
FAQ
Any monster in your Main Deck whose ATK is not "?". Extra Deck monsters are not in the Deck, so they cannot be revealed.
Yes: the monster with the lower ATK is destroyed in the Deck and sent to the GY, at the cost of 500 damage and a card for your opponent. Pick the "Send it to the GY" goal: the tool lists the monsters that beat yours and ranks your deck from the lowest ATK to the highest.
Both revealed monsters are shuffled into the Decks: nobody adds a card to their hand and nobody takes damage for that duel.
You can Summon it, but for the rest of the turn neither player can activate the effects of monsters with a revealed monster's name. This also applies to copies you already had.
The ATK printed on the card: the monster is revealed from the Deck, so no field bonus applies. That is the value the tool uses.
Yes, the tool is completely free and requires no sign-up. You can also add Subspace Battle to a deck in the deckbuilder to test it.
In the same category: Duel helpers
Free, no sign-up — open the deckbuilder and choose the monsters to reveal with Subspace Battle.
We use cookies to analyze traffic and improve your experience. You can accept, reject, or customize your choices at any time. Learn more
Install YGO Decklab
Open your decks in one tap from your home screen, full screen, like a real app.
Choose which cookies you want to allow. Necessary cookies are required for the site to function and cannot be disabled.
Necessary
Required for authentication, security (CSRF) and core site functionality. Cannot be disabled.
Analytics
Helps us understand how the site is used (Google Analytics, Ahrefs, PostHog) so we can improve it. Only enabled with your consent.