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Crystal Defense

Crystal Defense wave mode on Punch Island. Crystal Coins, Demon Wing accessory, Anti Magic sword, and Defense Merchant shop.

Crystal Defense is a wave-based survival mode on Punch Island in Sea 2. A Crystal Key gets you in, and Crystal Coins drop every wave. The mode also has a boss that spawns every 5 waves, dropping the Demon Wing accessory and (rarely) the Anti Magic sword.

How to Enter

FieldValue
LocationBack of Punch Island (Sea 2)
Entry cost1 Crystal Key per run
Crystal Key sourceSea 2 NPC drops

Wave Rewards

Crystal Coins drop every wave. Lower waves give around 3 Crystal Coins each. The coin payout increases with wave depth.

Boss Spawn

A boss spawns every 5 waves. The boss drops the Demon Wing accessory and can rarely drop the Anti Magic sword directly.

DropEstimated Rate (100% luck)Notes
Demon Wing0.060%-0.080%Best-in-slot accessory
Anti Magic sword0.048%-0.064%Direct sword drop, bypasses shop

Defense Merchant Shop

Crystal Coins can also be spent at the Defense Merchant for guaranteed purchases.

ItemCostType
Anti Magic sword5,000 Crystal CoinsEndgame sword (Asta theme)
Clover Outfit850 Crystal CoinsMythical accessory (100% DMG, 120% DEF, 15% DR)

Tips

  • Crystal Defense is the only source for Anti Magic and Demon Wing outside of trading.
  • The boss every 5 waves is the main reason to push deeper rather than resetting early.
  • Luck affects drop rates on the boss, so bring a luck build if farming for Demon Wing or Anti Magic.

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