Rules of the Arena

Yugi Fun is a fast 1v1 duel played with the 100-card YugiFun memecoin set. Each player starts with 8,000 Life Points. Summon monsters and attack to drop your opponent's Life Points to 0. Most matches finish in 5–20 minutes.

• A coin flip decides who goes first (server-controlled randomness).
• The player on the play opens with 5 cards.
• The player on the draw opens with 6 cards to offset first-turn tempo.
• Decks must contain exactly 30 cards with copy limits enforced at match start (max 2 per card; Legendary/Mythic/Meme Relic max 1).
• You may control up to 5 monsters on your field at once.
• Your hand can hold up to 10 cards; draws past that are burned.

On your turn, in order:

1. Draw a card from your deck — except the very first turn of the game (the opening player skips their first draw).
2. Gain energy. Your maximum energy rises by 1 (up to 10) and refills.
3. Main phase. Play any cards you can afford and declare attacks, in any order.
4. End turn — passing priority to your opponent. There is also a per-turn timer (75 seconds); if it runs out, your turn ends automatically.

Energy is your per-turn currency. You begin your first turn with 2 energy, and your maximum grows by 1 each turn up to a cap of 10, refilling fully at the start of your turn. YugiFun cards cost between 2 and 7 energy depending on their power tier.

• Monsters are summoned to an open field slot and gain Attack/Health from the card.
• A freshly summoned monster is summon-sick and cannot attack until your next turn — unless it has Surge.
• Spells, Relics, and Energy resolve their effect immediately, then go to your graveyard.
• Cards that need a target prompt you to pick one when played.

• Declare an attack with any of your ready (non-sick) monsters.
• You may attack an enemy monster or strike the opponent directly (their face).
• When two monsters fight, each deals its Attack to the other's Health simultaneously. A monster at 0 Health is destroyed.
• If the defender controls a Ward unit, you must attack a Ward first.
• Pierce spills leftover damage onto the opponent when it over-kills a blocker.
• Leech heals you for damage its unit deals.

Every card has a printed ability on its detail page in the Card Library. All 100 cards have runnable engine scripts. Supported triggers:

• On Summon — fires when the monster enters the field.
• On Destroy — fires when the monster is destroyed or sacrificed.
• On Attack — fires when the monster declares an attack.
• Direct Attack — fires when the monster attacks the opponent directly.
• Battle Destroy — fires when this unit destroys an enemy in combat.
• Battle Survive / Battle Damage — fires after combat resolves.
• End Phase — fires at the end of your turn while the monster is on the field.
• Activated — once per turn; click Activate on your unit during your Main Phase.

Units can be in Attack or Defense position. Defense halves counter-attack damage and enables position-based abilities. Combat uses ATK for damage and HP as the health pool. Complex clauses (tokens in a separate zone, full negation chains, tribute costs) resolve as simplified effects where noted on the card script.

A quick example of how an opening plays out:

1. Coin flip. The server picks who goes first. The first player draws 5 cards and does not draw on turn 1.
2. Turn 1 (first player). With 2 energy, summon a low-cost unit like SIGMA. It is summon-sick, so end the turn.
3. Turn 2 (second player). They opened with 6 cards and draw normally.
4. Turn 3 (first player). Energy is now 3. Summon PEPE; its On-Summon draws a card. SIGMA attacks face for damage.
5. Mid game. Trade monsters — ATK vs HP. SHIBA burns on battle destroy.
6. Closing. Swing for lethal, dropping the opponent to 0 Life Points.

Ready to try it? Start a duel on the Game Modes page.

• Reduce your opponent to 0 health to win immediately.
• If a player must draw from an empty deck, they take escalating fatigue damage instead.
• If the match timer expires, the winner is decided by points (health + board ATK/HP). A tie is a draw.
• If your opponent disconnects for too long during a match, you win by abandonment.

• Practice — learn the ropes against an AI; no wallet required.
• Casual — public lobbies; wallet optional; match history saved.
• Ranked — ladder play (Phase 2).
• Reward — 10-minute 1v1 duels; winners receive 1% of the vault balance (wallet required).
• Tournament & Boss Raid — coming soon.

The entire game is server-authoritative: every move is validated on the server, and your client never sees your opponent's hidden cards. Rewards are funded by a token-fee pool — never by player deposits or player-vs-player betting.

• Reward matches are fixed at 10 minutes and require a connected wallet.
• Winners receive 1% of the current vault balance, paid automatically to their wallet.
• A vault bot monitors match results and sends payouts from the treasury wallet — no manual approval queue.
• The vault launches with 10M $YUGI; buybacks refill the pool when needed.
• Anti-abuse checks and daily/weekly caps still protect the pool from farming.

More questions? Visit the FAQ.