Anime Last Stand Infinity Castle Guide (2025): Best Teams, Rewards & Max Difficulty 5 Strategy
Infinity Castle is one of the most challenging and rewarding modes in Anime Last Stand (ALS). This endless defense mode pushes players to test their team depth, economy management, and late-game strategies as enemies grow stronger floor by floor.
In this updated guide (based on the Infinity Castle Rework), we’ll break down everything you need to know — from the core mechanics and rewards to the best meta lineup that can clear Max Difficulty 5 efficiently.
🏰 What Is Infinity Castle?
Infinity Castle is a long-form survival challenge where you defend against endless waves of enemies across multiple floors. Each floor increases in difficulty, with tougher enemies, higher HP bosses, and tighter resource management.
Exclusive Rewards
Infinity Castle isn’t just a test of endurance — it’s a goldmine for top players. Here’s what makes it worth grinding:
- Exclusive Unit Capsules – Chance to drop ultra-rare units available only from Infinity Castle (as low as 0.2% drop rate).
- Leaderboard Titles – Top-ranked players gain unique badges and titles.
- Evolution Materials – Some top-tier evolutions require rare materials found only here.
⚔️ Best Team for Infinity Castle (Max Difficulty 5)
At Max Difficulty 5, both HP and damage scaling are brutal. You’ll need a balanced team covering economy, AoE, burst, buffs, and debuffs.
| Role | Recommended Units | Key Function | Notes |
|---|---|---|---|
| 💰 Money Unit | Surgeon of Death / Red Pirate | Core Economy | Must be placed early and maxed ASAP. |
| 🔥 AoE Damage | Fused Kai (Full Power) / The True Cursed King | Main DPS | Handles crowd control and mid-to-late wave clears. |
| 💣 Boss Burst (Nuke) | Ancient Vampire (Over Heaven) / Yuta Okkotsu (Rika) | Single-Target Damage | Critical for nuking high-HP bosses. |
| 🌑 Global Buff | Shadow | Full-Map Buff | Boosts damage & range across all units. |
| 🧩 Debuff Unit | Any high-tier debuff support | Defense Reduction | Vital to shred boss armor before nukes. |
| ⚙️ Support Utility | Aisen (Muken) / Cooldown reducers | CD Management | Shortens ult cooldowns for sustained DPS. |
🧭 Floor-by-Floor Strategy Breakdown
Phase 1: Economic Setup (Floors 1-20)
- Focus on money units first.
- Only place 1–2 low-cost DPS to handle early mobs.
- By Floor 20, ensure your economy is maxed.
Phase 2: Core Power Setup (Floors 21-60)
- Deploy main AoE DPS (e.g., Fused Kai) and Shadow for buffs.
- Introduce debuff units and position buffs carefully.
- Begin leveling up your Nuke units (Yuta / AV) but save max upgrades for later floors.
Phase 3: Boss Rush & Skill Timing (Floor 61+)
- Max your single-target nukers.
- Stack buffs + debuffs right before the boss wave.
- Time your Nuke abilities perfectly when bosses enter optimal range.
- Sell outdated units to fund your strongest AoE or Nuke units.
🚀 Pro Tips for Leaderboard Pushes
- Trait Priority: Focus on Avatar or Glitched traits — they provide massive multipliers for key DPS units.
- Team Coordination: In co-op runs, assign clear roles (Economy / Debuff / DPS / Burst).
- Skill Tree Setup: Max out Range and Damage nodes for small but crucial power boosts.
🏆 Final Thoughts
Mastering Infinity Castle is a mix of strategy, patience, and precise timing. With the right unit synergy and buff layering, reaching Floor 100+ or even topping the leaderboard is achievable.
So build your perfect lineup, plan your skill rotations, and climb to the top of the Infinity Castle tower — one floor at a time.
