Welcome, Prince! (A Simple Guide to Godly Power)

Fleeing the Underworld is a brutal, relentless task. Your martial skill is essential, but it is the fickle blessings of your Olympian relatives that will truly determine your fate. While any single boon is a welcome gift, the secret to a truly legendary escape attempt lies in **synergy**. This is where the gods combine their powers to grant you incredibly rare and powerful **Duo and Legendary Boons**. A Duo Boon can fundamentally alter your playstyle, like causing your Blade Rifts to hunt down enemies or making your deflected attacks instantly trigger your Doom effects. A Legendary Boon is the pinnacle of a god's power, a game-changing blessing that can make you virtually unstoppable.

But these ultimate boons don't appear by chance. They have secret recipes. To unlock them, you must first acquire a specific combination of prerequisite boons from the right gods. Remembering all these recipes in the heat of an escape attempt is a challenge worthy of Sisyphus himself. This calculator is designed to be your personal Codex, an all-knowing guide to these powerful synergies. It goes beyond simply showing you which gods *can* combine. Instead, you tell it *exactly which boons you have*, and it will instantly show you all the Duo and Legendary Boons you are now eligible to be offered. It's the ultimate strategic tool for transforming a hopeful run into a triumphant escape.

How to Use This Boon Planner

Discovering your path to power is as simple as accepting a gift from the gods:

1. Select Your Acquired Boons: In the panel on the left, you'll see a list of all the gods. Click on a god's name to expand their list of boons.
2. Check Off Your Boons: Simply click on the names of the boons you currently have in your run.
3. See Your Potential: The "Available Synergies" list on the right will instantly update. It will show you every Duo and Legendary Boon you can now be offered, who it's from, and what it does. As you pick up new boons, just check them off on the list to see what new possibilities have opened up!
4. Save and Share: Your build is automatically saved in your browser. Use the "Copy Share Link" button to get a unique URL for your exact boon setup, perfect for saving a great run or sharing a powerful build with friends.

Tips for a God-Tier Build

• Focus Your Pantheon:** The secret to finding Duos and Legendaries is to limit your god pool. The game is more likely to offer you the prerequisites you need if it only has 3 or 4 gods to choose from. Try to stick to a small, synergistic group of Olympians for each run.
• **The Keepsake is Your Key:** If you are hunting for a specific Duo, equip the Keepsake of one of the required gods. This guarantees you'll see them, dramatically increasing your chances of finding the core boons you need to unlock the synergy.
• **Core Boons First:** The prerequisites for most Duo Boons are "core" boons—the ones that affect your main Attack, Special, Cast, or Dash. Prioritize picking these up from the two gods you want to synergize.
• **Don't Underestimate the Mirror:** Talents from the Mirror of Night can also be required for some Legendary boons. For example, Poseidon's "Huge Catch" Legendary requires you to have the "Ocean's Bounty" boon and the "Conch Shell" keepsake, but also the "Sunken Treasure" talent from the mirror.
• Some Synergies are Worth Building Around:** Boons like **Merciful End** (Ares/Athena) or **Hunting Blades** (Ares/Artemis) are so powerful that they can be the entire focus of a build. Use this tool from the very start of your run to see the exact path you need to take to acquire these game-breaking powers.