If you’ve ever read the Expert Card Master skill in Moonstone Island and been left scratching your head over what it means by “secret cards,” you’re not alone. These elusive cards are powerful five-star moves unique to each elemental type, and they can completely transform your combat potential—if you manage to find them.

This guide will break down what secret cards are, what each one does, and how to actually unlock them efficiently without wasting all your resources or in-game years.

---

What Are Secret Cards?

Secret cards are ultra-rare five-star cards tied to element types, not individual spirits. That means all spirits of the same element share the same secret card. For example:

• Magikat and M-Slime (both psychic) share the same card.
• Marsha and Bird Brain (both poison) share the same one as well.

They’re exceptionally rare—you could play four full in-game years and still not collect them all without using an optimized method.

So if you’re going to hunt for them, choose your spirits carefully. Aim for secret cards that complement a spirit’s passive or match your build style.

---

Secret Cards by Element

Here’s a breakdown of each element’s secret card and its effects:

• Earth – AOE damage that removes 5 armor from all enemies. Damage scales with spirit’s Power.
• Water – Big Hug: Applies heavy regen to all allies. Scales with Power.
• Electric – Lightning Storm: AOE electric damage 10 times, each hit scaling with 0.25x Power.
• Poison – Purified Poison: Amplifies all poison on a target. Completely broken when paired with DOT builds.
• Fire – Firestorm: Applies burn to random enemies 10 times. Burn damage halves each turn.
• Ice – Ice To Meet You: Massive AOE ice damage scaling 4x Power.
• Psychic – Mind’s Eye: Grants 10 energy in one card. Perfect for infinite combo decks.
• Dark – Blood Magic: Steals HP from enemies, scaling 5x Power.

Note: Poison and Psychic secret cards are game-changers. Pairing Purified Poison with Marsha or Mind’s Eye with Magikat can break the game if used right.

---

How to Get Secret Cards

There are three ways to obtain secret cards:

1. Leveling Up Spirits (Best Method)

When a spirit hits level 40+, there’s a small chance it learns its element’s secret card. This is the most reliable and repeatable way to get the card you want—if you use the right technique (see below).

2. Study Talismans (Not Recommended)

These allow you to pick between three random cards for a spirit. The catch? You must pick one, and the odds of a secret card appearing are extremely low. In most cases, you’ll end up diluting or ruining your deck.

3. Magic Man’s Shop (Unreliable RNG)

His stock refreshes daily, and secret cards can appear—but very rarely. Over 4 years of playtime, you might see one once. Check daily, but don’t rely on it.

---

The Best Method: Save Scumming + XP Crops

To guarantee secret card acquisition without wasting years of game time or hundreds of crops, use this method:

Step-by-Step:

1. Pick your spirit – Choose one that benefits from its secret card.
2. Level it to 40 – Do this through battle or normal XP farming.
3. Prepare 50–100 XP crops – Use Willow Wisps (autumn) or Gift Plants (winter). Add XP fertilizer for better results.
4. SAVE YOUR GAME – Right before feeding the crops.
5. Feed crops until level 50–60 – After each level-up, check for secret card.
6. Didn’t get it? Reload and repeat – Keep feeding and checking until the card appears.

This method lets you retry endlessly without re-growing crops, making it by far the most efficient way to get secret cards.

Pro tip: Don’t attempt this method with spirits above level 60—it becomes resource-intensive for no additional gain.

---

Final Thoughts: Secret Power, Strategic Unlocks

Secret cards aren’t just for collectors—they’re legitimate power boosts that can define your team’s entire combat strategy. From the absurd utility of Mind’s Eye to the devastating AOE of Blood Magic, unlocking the right secret card can take your playthrough to a whole new level.

So remember: target your spirit, grow your XP crops, and save smart. With this technique, you’ll be flexing 10-energy psychic storms and poison nukes in no time.

Now go forth, find your favorite spirit, and break the game the fun way. And hey—don’t forget to feed your Willow Wisps.