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Nine-card AI battle
Choose an AI, deal nine cards, and tap a position to replace a card. Then see how attack and defense decide the battle.
My nine-card formation
Tap a position, then replace its card below.
Loading the AI test card pool…
This battle uses dedicated AI test cards. It does not update official rankings or award prizes.
Available replacements
Only compatible AI test cards that are not used in another position appear here.
Start with “Deal a random formation”
How this battle is calculated
Apply the same-nation bonus to each card, then its position weights. Add the resulting attack and defense.
Round each percentage stage to the nearest integer, with halves rounded up. Same-nation cards receive +5% attack and defense once per card.
Penetrating damage = total attack − opposing total defense, with a minimum of 0. Compare both sides to decide win, loss or draw.
This battle uses dedicated AI test cards. It does not update official rankings or award prizes.