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Slay the Spire 2 Byrdonis Egg — The Secret Relic Guide
Updated 2026-06-02
Slay the Spire 2 Byrdonis Egg — The Secret Relic
The Byrdonis Egg is one of the rarest relics in Slay the Spire 2. It's a hidden relic that you can only get through specific events. And it's very good.
| Property | Detail |
|---|---|
| Type | Shop relic / Event relic |
| Rarity | Very rare |
| Effect | At the start of each turn, add a random potion to your hand |
| Potion limit | Bypasses normal potion limit |
| Cost in shop | 250 gold (if it appears) |
Version 1.0.3 fixed a bug where the Byrdonis Egg triggered on potion use every turn. It now correctly triggers once at the start of your turn.
The Byrdonis Egg appears in the 'Curious Merchant' event room. You need to have at least 200 gold to buy it. It can also show up in the shop, but the spawn rate is low — about 2% per shop.
This relic is strongest on the Silent and Necrobinder. Silent can use potions for extra Shiv generation. Necrobinder gets free healing potions that offset HP costs.
FAQ
- Is the Byrdonis Egg worth buying?
- Absolutely. 250 gold is cheap for a relic that generates a potion every turn.
- Can the Byrdonis Egg drop from Elite enemies?
- No. It only appears in the Curious Merchant event or the shop.
- Does the Byrdonis Egg work with potion synergy relics?
- Yes. Any relic that triggers on potion use works with the free potions from the Egg.
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