Catch a Monster Tier System Guide: Complete E to S Tier Ranking Explained

Understanding the tier system in Catch a Monster is absolutely essential for building a powerful team and progressing efficiently through the game. Every monster you encounter, catch, or hatch has a tier rating that fundamentally determines its power level, stat potential, and overall usefulness. In this comprehensive guide, we'll break down everything you need to know about the tier system.

What is the Monster Tier System?

The tier system is Catch a Monster's way of categorizing monsters by their power level and rarity. There are six tiers in total, ranging from the common E tier to the ultra-rare S tier. A monster's tier affects:

• Base stats (Attack, HP, Speed)
• Stat growth when leveling up
• Overall combat effectiveness
• Value in fusion
• Trading value (when trading is available)

The tier of a monster is determined at the moment you catch it or hatch it from an egg. While you cannot change a monster's species, you CAN upgrade its tier through the fusion system.

Complete Tier Breakdown

Let's examine each tier in detail:

E Tier (Common) - The Foundation

Characteristics:

• Most frequently encountered tier
• Approximately 45% of wild spawns
• Lowest base stat values
• Found everywhere, especially on Starter Island

Stats Multiplier: 1.0x Attack, 1.0x HP

Best Uses:

• Fusion fodder for creating D tier monsters
• Early game progression
• Learning combat mechanics
• Building up coin reserves by selling extras

While E tier monsters might seem weak, they're actually incredibly important. You'll need massive quantities of E tier catches to fuel your fusion chain up to higher tiers. Never underestimate the value of farming E tier monsters!

D Tier (Uncommon) - Early Progress

Characteristics:

• Second most common tier
• Approximately 30% of wild spawns
• Noticeable improvement over E tier
• Still readily available on all islands

Stats Multiplier: 1.3x Attack, 1.2x HP

Best Uses:

• Stepping stone to C tier
• Reliable early-mid game combat
• Better fusion material than E tier
• Good for completing starter content

D tier monsters represent your first real power upgrade. A team of D tier monsters can comfortably clear Starter Island content and begin exploring Volcano Island.

C Tier (Rare) - The Turning Point

Characteristics:

• Uncommon wild spawns
• Approximately 15% of wild encounters
• Significant stat improvement
• More common on advanced islands

Stats Multiplier: 1.6x Attack, 1.5x HP

Best Uses:

• Solid mid-game main team members
• Efficient fusion into B tier
• Capable of defeating early bosses
• First tier worth investing XP into

C tier is where monsters become genuinely useful for serious content. If you find a shiny C tier monster, it's worth keeping and fusing up rather than using as fodder.

B Tier (Epic) - Endgame Ready

Characteristics:

• Rare wild spawns (7% approximately)
• Often obtained through fusion or eggs
• Strong base stats
• Viable for most endgame content

Stats Multiplier: 2.0x Attack, 1.8x HP

Best Uses:

• Main team monsters for most players
• Boss hunting (Flaragon, Glazadon)
• Endless Spire climbing
• Long-term investment

B tier monsters are the backbone of most players' endgame teams. While A tier is technically stronger, B tier offers an excellent balance between power and obtainability.

A Tier (Legendary) - Elite Power

Characteristics:

• Very rare wild spawns (2.5% approximately)
• Primarily from boss eggs and high-tier fusion
• Exceptional stats
• Top-tier for all content

Stats Multiplier: 2.5x Attack, 2.2x HP

Best Uses:

• Optimal for all endgame content
• Boss speedrunning
• High Endless Spire floors
• Ultimate goal for most players

A tier represents the practical peak of monster power for most players. Monsters like Glazadon, Flaragon, and Starshade at A tier are considered among the best in the game.

S Tier (Mythic) - The Pinnacle

Characteristics:

• Extremely rare (0.5% or less)
• Currently limited availability
• Highest possible stats
• Status symbol

Stats Multiplier: 3.0x Attack, 2.5x HP

Best Uses:

• Absolute best combat performance
• Flex on other players
• Future content preparation

S tier is currently the rarest tier in Catch a Monster. As of now, obtaining S tier monsters is extremely difficult, with some only available through special means.

Stat Multipliers Comparison Table

Here's a complete breakdown of how tiers affect stats:

Key Insight: An A tier monster is approximately 3.75x more powerful than an E tier monster of the same species and level!

How to Obtain Higher Tier Monsters

There are several methods to get higher tier monsters:

Method 1: Wild Catching (Luck-Based)

Every wild monster has a chance to spawn at a higher tier. Your base luck and luck game passes affect these odds:

Method 2: Fusion (Guaranteed Upgrade)

The most reliable way to get higher tiers:

1. Collect 5 monsters of the same tier
2. Visit the Pet Center and select Fuse
3. Pay the coin cost
4. Receive 1 monster of the next tier up

Fusion Costs:

Method 3: Egg Hatching

Eggs can hatch monsters at various tiers:

• Fire Eggs - Up to A tier (Noctane)
• Boss Eggs - Up to A tier
• Ice Eggs - Up to A tier (Glazadon)
• Event Eggs - Varies by event

Method 4: Boss Drops

Certain bosses can drop high-tier monsters directly:

• Flaragon boss drops A tier fire pets
• Glazadon can be caught at A tier
• Event bosses often drop A tier rewards

Tier Priority: Which Monsters to Invest In?

Not all monsters are created equal, even within the same tier. Here's a priority guide:

Top Priority (Always Keep)

• Any shiny monster (any tier)
• A tier anything
• B tier of good species (Glazadon, Flaragon, Noctane)
• Event-exclusive monsters

Medium Priority (Situational)

• B tier common species
• C tier shiny monsters
• Useful rideable mounts (Aquron)

Low Priority (Fusion Fodder)

• E tier (unless shiny)
• D tier (unless shiny)
• Duplicate C tiers

Common Tier System Mistakes to Avoid

1. Selling high-tier monsters - Never sell B tier or above
2. Using shinies as fusion fodder - Shinies transfer through fusion, so never waste them
3. Ignoring fusion - It's the most reliable progression method
4. Hoarding E tiers - Use them for fusion, don't let them fill your storage
5. Buying luck passes before understanding the game - Learn the basics first

Conclusion

The tier system is the foundation of progression in Catch a Monster. By understanding how tiers affect stats, knowing the various methods to obtain higher tiers, and making smart decisions about which monsters to keep or fuse, you'll build a powerful team efficiently.

Remember: a well-leveled B tier team can clear most content. Don't stress about getting A tier right away – focus on steady progression through fusion!

For detailed fusion strategies, check out our Fusion System Guide. To find specific monsters, visit our Monster Locations Guide.