In Moonstone Island, building the perfect team of spirits is key to surviving tougher biomes, winning boss fights, and dominating late-game encounters. While there are dozens of spirits to choose from, a few stand out as truly exceptional when it comes to combat effectiveness. This guide breaks down one player’s personal top 5 combat spirits—not just based on power, but also on synergy, passives, and card utility. Each comes with a suggested build that plays into its strengths.

#5 – Fishbowl: The Early Game Healer With a Twist

Fishbowl may be a common spirit, but don’t underestimate its usefulness early on. Found easily on beach biomes, Fishbowl offers an incredibly practical passive: +10 HP heal whenever you feed a spirit during battle. That might seem small, but in the early stages, when your party’s HP pools are modest, this makes a huge difference in staying alive.

Build Focus: Semi-support with healing and utility.

• Healing: Group Hug, HP Ring
• Cleanse: Holy Water, Ablution (removes burn and poison)
• Utility: Refresh, Bash, Hydromancy, Consume
• AOE: Soap+ for triple-target splash damage

Fishbowl eventually loses value in the late game due to the small scaling of its passive. Still, it’s one of the best support spirits to have early in your adventure.

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#4 – Popobawa: A Dark-Type Damage Dealer With Scaling Power

Popobawa is a dark spirit that shines through its passive and devastating card combinations. Its synergy with self-healing and DOT (damage-over-time) cards make it lethal in both mob clearing and boss fights.

Build Focus: Energy cycling and high-damage AOE

• Energy Gain: Nightfall (spam it)
• AOE Damage: Nightmare
• Utility: Shapeshift (mainly for boss fights, only 1 copy needed)
• Sustain: Still Life
• Core Damage: Blood Rites and Cosmic Horror (summoned via card combos)

Its passive helps remove poison and burn, adding durability while dishing out massive area damage. Definitely a must-have for dark biome progression.

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#3 – Flambit: The Burn Master of the Fire Types

Burn damage may seem small on paper, but Flambit turns it into a deadly weapon. Its passive applies burn DOT—a direct HP reducer that bypasses armor. When built for full burn, Flambit can wear down enemies over time without needing to break their defenses.

Build Focus: Damage-over-time and single-target burst

• DOT Scaling: Burn Rain, Fire Flame
• Single Target Damage: Fire Fist
• AOE and Utility: Fire Breath
• Finisher: Explode (high single-target impact)

Best used when battling in dark biomes, where many enemies rely on status effects and slower attack speeds.

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#2 – Marsha: The Poison Engine That Can Solo the Game

Marsha is so powerful it almost feels broken. Its passive applies 1 poison to all enemies every time you use a poison card. Stack your deck with nothing but poison effects, and you’ll watch enemies melt each turn without lifting a finger.

Build Focus: Full poison with acceleration

• Core Cards: Reckless Gas, Spore, Poison Leaf
• Optional Cards: Venom Vine, Fungal Pollen, Poison Lily (less optimized, but still effective)
• Boosters: Accelerant (triples all DOT)

You could literally beat the game with two Marshas and one support spirit. If you have 9 energy and 8 poison cards in a turn, you’re dropping 80+ poison ticks on top of your regular attacks. It’s wild—and it bypasses armor too.

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#1 – Magikat: The Ultimate Flexible Support

Sure, this choice might be biased (who doesn’t love a magical cat?), but Magikat earns its spot through sheer utility. Its passive upgrades one card in your deck every turn, making your strategy stronger the longer the battle goes on. And when built correctly, Magikat becomes the ultimate enabler for other spirits.

Build Focus: Energy gain, card draw, support

• Energy Engine: Enlighten, Open Mind
• Card Draw: Meditate, Premonition
• Support: Free Thought (armor break), Mind Blast (optional backup attack)
• Extra: Bash cards (optional; useful in early builds)

When paired with DOT builds like Marshas or Flambits, Magikat helps smooth out hands, build momentum, and secure consistency across turns. The synergy between Magikat’s flexibility and the overwhelming poison/burn output of its allies is unmatched.

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Final Thoughts: How to Build a Meta Team

If you’re looking for a strong, reliable team to carry you through the toughest fights in Moonstone Island, try this winning combo:

• Two Marshas for insane DOT scaling
• One Magikat for support and card cycling

This trio is simple, powerful, and synergistic. It lets you push through even the harshest biomes with almost no counter.

So what are your top five spirits? Let us know—and until then, build smart, poison everything, and pet the cat. Magikat believes in you.