What is confirmed
- The official store describes Holo Decklings as rare collectibles.
- A developer reply describes the difference as a foil effect and color swap.
- A developer update says the foil drop rate was made rarer and a pity system was added.
- Foil status is rerolled when an Egg hatches, according to the same update.
What is not confirmed here
This public-source edition does not publish a precise full-release probability, pity counter, or method for increasing the odds. Those values should be checked in the current game version before being presented as fact.
Practical takeaway: treat Holo as a rare visual variant unless current gameplay evidence shows an additional mechanical effect.
Quick questions
Are Holo Decklings stronger?
No stat advantage is confirmed by the developer reply used here. It mentions a visual foil effect and color swap.
Is there a pity system?
Yes. An official developer update says a pity system was added, but that post does not provide the full counter details.
Can Eggs hatch as Holo?
The patch notes say foil status is rerolled when hatching Eggs, which confirms Eggs participate in the foil roll.