The Core is a fusion reactor — the last energy source on Earth. Every clan fights for access to it. The Arena decides who receives power and who freezes in the dark.

Each fighter starts with the life value shown on their card pack. A match ends immediately when a fighter's life reaches zero. If both reach zero on the same move, it's a draw.

A round is 10 moves. If both fighters survive all 10, packs reset and a new round begins — life totals carry over.

Hold your cards in hand. Each move, select one card to play. Who plays first alternates every move. When the opponent goes first, their card is revealed before you choose your response.

Before the round begins, arrange all 10 cards face-down in a row. The order cannot change once locked. Cards are revealed in pairs from left to right — one pair per move.

Each card has a negative Attack and a positive Defence.

Opponent Attack + Your Defence → applied to your life.

Your Attack + Opponent Defence → applied to their life.

Negative results reduce life. Positive results restore life, but never above the starting value.