Catch a Monster Endless Spire Guide: How to Beat Floor 50 & Best Teams

The Endless Spire is the ultimate test of strength in Catch a Monster. While the early floors are a breeze, many players hit a brick wall at Floor 49 and 50.

If your team of Mountusks is suddenly getting one-shot, you are not alone. This guide explains why Floor 50 is so hard and provides the specific strategies you need to beat it.

Why Floor 50 is the "Gatekeeper"

The boss on Floor 50 isn't just strong; it has a specific mechanic that counters the most popular strategy in the game.

The Debuff: The Floor 50 boss deals 200% Extra Damage to Earth Types. The Problem: Most players rely on Mountusk (an Earth type) for its Heal Pulse ability to survive. The Result: Your tanky Mountusks, which carried you through 49 floors, will melt instantly against this boss.

Best Teams for Floor 50

To beat this floor, you need to adapt your team. Here are the three most effective compositions:

1. The "Brute Force" (Gingerjoy Meta)

Team: 3x Gingerjoy (or 2x Gingerjoy + 1 Support). Why it works: Gingerjoy's damage is currently so overtuned (even at D-Rank) that you can kill the boss before it kills you. This is the easiest method if you have the new event pet.

2. The "Anti-Meta" (Elemental Counter)

Team: 3x Glazadon (Ice) or Flarecrest (Fire). Why it works: By switching away from Earth types, you avoid the 200% damage penalty. Glazadon: Offers a good balance of HP and Damage. Flarecrest: High DPS glass cannon. Good if you can kill fast.

3. The "Hybrid" Strategy

Team: 2x Mountusk + 1x Glazadon/Flarecrest. Strategy: Use the Mountusks to heal through the waves leading up to the boss. Once the boss spawns, let your Mountusks tank the first few hits while your non-Earth carry deals the damage.

Advanced Strategy: The "Squad Swap" Trick

Disclaimer: This is an exploit that may be patched in future updates.

Players have discovered a trick to bypass the difficulty if your team wipes.

1. Prepare Two Squads: Have your main strong team equipped, and a second backup team ready in your inventory.
2. The Swap: If your first squad dies to the boss, quickly open your inventory and equip your second squad.
3. The Glitch: Sometimes, the boss's health will not regenerate between the squad swap, allowing your fresh team to finish off the remaining HP.

General Spire Tips

Focus Fire: Don't let your pets attack random targets. Manually click the small mobs first to reduce the incoming damage. Heal Pulse Timing: If you are using Mountusk on earlier floors, try to manually trigger Heal Pulse when your team is low, rather than letting the AI waste it. Rewards: Clearing high floors gives massive amounts of Gems and Coins, making it the best farming method in the late game.