Poison builds in Moonstone Island can be absolutely devastating when built right, and few setups show off their raw power better than this one built around Marsha as the primary poison dealer and Beardini as an energy-generating support. In this guide, we’ll walk you through the ideal deck, supporting synergy options, stats, and tactical execution of the build—including what to do when your ideal card doesn’t show up.

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Core Mechanics: Marsha’s Passive and Momentum

At the heart of this build is Marsha’s passive, which applies +1 poison to all enemies whenever you use any poison card. When used alongside Momentum—a card that draws more cards after using a skill—the synergy becomes explosive.

Your core loop revolves around:

1. Generating energy with Beardini
2. Drawing cards using Momentum
3. Spamming poison cards
4. Accelerating poison damage with Accelerate

With enough consistency and the right draw, you can defeat enemies before they ever get a turn.

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Deck Breakdown

Marsha’s Deck (Poison Dealer)

• Momentum – Absolutely essential (1+ copies)
• Reckless Gas – Strong AOE poison
• Spore – Single target poison
• Accelerate – Essential for ramping up DOT damage
• Blind Blow – Solid utility filler

Pro Tip: Once you have more Accelerates, consider trimming down Reckless Gas or Spore for a more optimized loop.

Beardini’s Deck (Energy Support)

• Enlighten – Energy generation
• Momentum – Also needed here
• Meditate, Premonition, Open Mind – Draw tools
• Refresh – Utility
• Blind Blow – Optional for filler or combo extension

The goal with Beardini is to rapidly build up energy so Marsha can go full throttle with her poison spam. Momentum in both decks ensures you keep drawing as you play.

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Combat Strategy: How It Works in Action

1. Start by building energy with Enlightens and triple-energy cards.
2. Draw Momentum as early as possible to start your poison loop.
3. Use poison cards (Spore, Reckless Gas), triggering Marsha’s passive to poison all enemies each time.
4. Accelerate to fast-forward poison damage and end fights early.

Once the engine is running, you’ll poison enemies into oblivion with a chain of DOT effects. In ideal conditions, you can deal enough damage in a single turn to end the fight before the enemy gets a move.

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Handling Bad Draws

Not every hand will start perfectly. When you don’t draw Momentum early, rely on your card draw tools like:

• Meditate
• Premonition
• Open Mind

If you still don’t hit your draw engine, soak the damage with armor. That’s why Marsha runs 15 armor and Beardini runs 20 armor—just enough to tank a turn without falling apart.

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Alternative Spirit Synergy: Ribbit and Bane

Looking to expand the build?

Ribbit

• Passive: When an enemy dies, its poison transfers to a new random enemy
• Use Case: Great for dealing with groups when you know some enemies might survive a turn. Keeps the poison moving.

Recommended Ribbit Loadout:

• 4x Blind Blow
• 1x AOE Poison
• 2–3x Accelerates

Trim everything else if you can cleanse cards.

Bane (Early Game Only)

• Passive: Generates energy against solo enemies
• Not useful for late game or multi-target battles
• Best to replace with more synergistic spirits as soon as possible

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Stat Allocation

Marsha

• 15 Armor – For survivability in off-turns
• High Speed – To guarantee first turn
• Power – Dump the rest here for stronger poison effects

If a teammate already has higher speed, you can drop speed and push all your stats into Power instead.

Beardini

• 20 Armor – A bit tankier for longer setups
• Speed – Naturally fast as a breaker
• Vitality – Small investment for safety
• Power – Almost none needed, as she’s not the damage dealer

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Final Thoughts: Smooth, Scalable, and Satisfying

This poison build is not only effective—it’s satisfying. With the right deck and draw engine, you can erase enemy health bars in a single round while watching poison spread like wildfire.

If you’re struggling with card consistency, just remember: everything hinges on Momentum. Build around it, draw into it, and accelerate your way through the toughest fights. And if you’re looking to optimize even further, Ribbit can provide extra chain synergy to wipe groups with ease.

Experiment, tweak your loadout, and have fun melting the battlefield—one toxic tick at a time.

See you next round!