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  "description": "Take the egg at Byrdonis Nest, then use a Rest Site’s Hatch option to turn it into Byrd Swoop.",
  "path": "/byrdonis-egg-in-slay-the-spire-2-from-event-to-hatch/",
  "publishedAt": "2026-03-09T08:48:18.000Z",
  "site": "https://allthings.how",
  "tags": [
    "Slay the Spire 2",
    "@Friendly"
  ],
  "textContent": "Byrdonis Egg is a Quest card in Slay the Spire 2. It starts as an unplayable card in your deck, and it only changes once you bring it to a Rest Site and choose `Hatch`.\n\n**Quick answer:** Find the `Byrdonis Nest` event in a `?` room, pick `Take the Egg`, then go to a Rest Site and select `Hatch`.\n\nImage credit: __Mega Crit (via YouTube/@Friendly Frenzy Games)__\n\n* * *\n\n### Byrdonis Egg trigger\n\nThe trigger is simple and exact. Byrdonis Egg comes from the `Byrdonis Nest` event, which appears in an Event room marked with a question mark on the map.\n\nThat event gives you two choices. One raises your Max HP by 7. The other adds Byrdonis Egg to your deck. If you want to hatch the egg, you must choose `Take the Egg`.\n\nEvent | Choice | Result\n---|---|---\nByrdonis Nest | Eat the Egg | Gain 7 Max HP\nByrdonis Nest | Take the Egg | Add Byrdonis Egg to your deck\nByrdonis Egg comes from the `Byrdonis Nest` event | Image credit: __Mega Crit (via YouTube/@Friendly Frenzy Games)__\n\n* * *\n\n### How to hatch Byrdonis Egg\n\n**Step 1:** Reach a Rest Site after taking Byrdonis Egg. Rest Sites are the campfire rooms on the map.\n\n**Step 2:** At the Rest Site, choose `Hatch`. This is the action tied to Byrdonis Egg’s Quest condition.\n\n**Step 3:** Finish the Rest Site action. Choosing `Hatch` uses that site’s single action, so you cannot also `Rest` or `Smith` there.\n\n🔥\n\nAt the Rest Site, Hatch replaces your normal campfire choice for that stop. If you hatch the egg, you give up Rest and Smith at that site.\n\nAt the rest site, choose Hatch | Image credit: __Mega Crit (via YouTube/@Friendly Frenzy Games)__\n\n* * *\n\n### How to know Byrdonis Egg worked\n\nThe card changes in your deck. Byrdonis Egg is removed and replaced by `Byrd Swoop`, so the unplayable Quest card is no longer taking up a draw.\n\nIf you still see Byrdonis Egg in your deck, the trigger has not been completed. The completed state is the presence of Byrd Swoop instead of the egg.\n\n* * *\n\n### Byrd Swoop reward\n\nHatching Byrdonis Egg gives you a colorless attack card called `Byrd Swoop`. It costs 0 energy and deals 14 damage.\n\nCard | Cost | Effect\n---|---|---\nByrd Swoop | 0 | Deal 14 damage\nByrd Swoop+ | 0 | Deal 18 damage\n\nBecause it is colorless, Byrd Swoop can fit into any character’s deck. The important part for the hatch itself, though, is that the reward fully replaces the Quest card rather than sitting beside it.\n\nByrd Swoop can fit into any character’s deck | Image credit: __Mega Crit (via YouTube/@Friendly Frenzy Games)__\n\n* * *\n\n### What stops the hatch\n\nThere are only a few hard blockers.\n\nProblem | What it means\n---|---\nYou chose Eat the Egg | You never added Byrdonis Egg to the deck, so there is nothing to hatch\nYou have not reached a Rest Site | The Quest condition has not been met yet\nYou used Rest or Smith instead | You spent the Rest Site action on something else and must wait for another site\n\n* * *\n\nThe whole sequence is short once you know the trigger. Take Byrdonis Egg from Byrdonis Nest, reach a Rest Site, choose `Hatch`, and confirm the result by checking that Byrdonis Egg has turned into `Byrd Swoop`.",
  "title": "Byrdonis Egg in Slay the Spire 2, From Event to Hatch",
  "updatedAt": "2026-03-09T08:48:19.758Z"
}