Tools · Miracle Chest
Miracle Chest
Diamonds find chests; keys open them. You can only hold four unopened chests, and while all four are full, summons can't drop new ones. Fill the slots with good chests, then stop and open.
Your resources
Your four chest slots
Slot 1
Slot 2
Slot 3
Slot 4
What should I do?
Use your free summon, then keep fishing
4 slots are open. About 1 in 4 summons drops a chest; a Legendary or Excellent takes about 11 summons on average. Keep Legendary and Excellent, discard Fine and Common.
Keys
Cheapest chest on your board—
Open every chest with a known cost—
Event points from spending those keys05 per key · 10 per summon
Key cost optimizer
Off by default. Turn on to see the cheapest mix of key packs for a target, within each pack's purchase limit.
What are my chances?
| Chest | Drop rate | Expected | At least one | Key cost | Advice |
|---|---|---|---|---|---|
| Legendary | 3.1% | 0.0 | 3.1% | 500 | Keep |
| Excellent | 6.2% | 0.1 | 6.2% | 200 | Keep |
| Advanced | 7.5% | 0.1 | 7.5% | Unknown | Situational |
| Fine | 5.3% | 0.1 | 5.3% | Unknown | Discard while fishing |
| Common | 3.0% | 0.0 | 3.0% | Unknown | Discard while fishing |
| Legendary or Excellent | 9.3% | 0.1 | 9.3% | ||
| Any chest | 25.1% | 0.3 | 25.1% |
Expected is an average over many players, not a promise. "At least one" is the chance you personally see one.
Assumptions
- Values last verified in game on 2026-09-29. X-Clash can change rates, costs, prices and limits between events.
- 100 diamonds per summon; 10 event points per summon and 5 per key spent; 5% chance of double rewards when opening.
- Key costs for Advanced, Fine and Common chests aren't verified yet, so they're left out of totals instead of guessed.
- Legendary costs 2.5× the keys of Excellent, and the one reward compared so far (48 vs 120 gold puzzle pieces) is also exactly 2.5×. So Legendary isn't automatically better value per key.
- Pack prices are in CAD and may differ by region or platform.