Overview
| Item |
Details |
| English Name |
Astrolabe |
| Rarity |
Ancient |
| Character |
Shared |
| How to Obtain |
Ancient relic (boss drop) |
| Overall Tier |
A |
Rating
Astrolabe is an Ancient relic that lets you choose 3 cards from your deck and transform each into a random upgraded card. Unlike Pandora's Box's full randomness, you pick which cards transform, so risk is more controllable.
Comparison with Pandora's Box
- Pandora's: Transforms all Strikes/Defends. No selection — total gamble
- Astrolabe: You choose 3 cards. Controllable but fewer transformations
- The transformed cards are pre-upgraded — a major Astrolabe advantage
- Astrolabe for stability; Pandora's for high-risk high-reward
Optimal Transformation Targets
- Strike — weakest attack. Almost certain to upgrade to a better card
- Defend — candidate when Block cards are abundant
- Misfit cards — transform cards that don't match your build direction
- Starter unique cards — character-specific starters if they don't fit the build
Expected Results
- Transformed cards come randomly from the character pool but are pre-upgraded, making them immediately viable
- Upgraded Common cards are often far better than Strike
- Upgraded Rare cards are jackpots
- Getting even 1 fitting card out of 3 is a solid return
Character Evaluations
| Character |
Rating |
Comment |
| Ironclad |
A |
Strong card pool with few duds. An upgraded high-cost card becomes an instant ace |
| Silent |
A |
Upgraded Poison cards accelerate the Poison build from early on |
| Defect |
A |
Upgraded orb cards greatly increase effect magnitudes |
| Necrobinder |
B+ |
Summon cards are RNG-dependent. Great on hit but risks scattering the build |
| Regent |
B+ |
Upgraded Star cards are strong, but direction may scatter |
Synergies
| Card / Relic |
Reason |
| Early game with many basic cards |
Plenty of targets, 3-card transformation greatly improves the deck |
| Thinned decks |
Smaller decks see more impact from 3 cards becoming strong cards |
| Egg-type relics |
The transformed cards are already upgraded so eggs don't apply, but newly added cards still benefit |
Playstyle Tips
- Prioritize Strikes, then Defends, then build-misfit cards
- Even if the transformed card doesn't fit your direction, upgraded card power often makes it playable
- 3-card transformation is most effective after Act 1 — smaller decks amplify its impact
- After seeing the transformed cards, flexibly adjust your build direction
