Starlight Alchemy Defense drop rates
The kinds and chances of every random item you get with crystals (which can also be bought) or stardust, and of the random item in a paid product. Every number matches what the game shows on the matching screen.
Last updated: September 29, 2026 · app version 1.1.0
1. Relic summon
1 summon: 30 Crystals; 10 summons: 270 Crystals. Free summons from watching an ad use the same rates. The rarity is picked by weight first, then one relic of that rarity, each equally likely.
| Rarity | Weight | Rarity chance | Relics | Each relic | Guaranteed slot |
|---|---|---|---|---|---|
| Common | 48 | 48% | 26 | 1.8462% | — |
| Rare | 34 | 34% | 32 | 1.0625% | — |
| Epic | 14 | 14% | 22 | 0.6364% | 77.7778% |
| Legendary | 4 | 4% | 16 | 0.25% | 22.2222% |
10-summon guarantee: if none of the ten is Epic or better, the tenth is drawn again from Epic and Legendary relics only (the “Guaranteed slot” column). A 10-summon therefore always holds at least one Epic-or-better relic, and holds at least one Legendary relic 36.5711% of the time.
A relic you already own becomes a copy for upgrading it; one already at max level turns into stardust.
Every relic
| Relic | Rarity | Per summon | Guaranteed slot |
|---|---|---|---|
| Golden Scales | Common | 1.8462% | — |
| Wanted Poster | Common | 1.8462% | — |
| Quest Scroll | Common | 1.8462% | — |
| Explorer's Pack | Common | 1.8462% | — |
| Copper Purse | Common | 1.8462% | — |
| Star Piggy Bank | Common | 1.8462% | — |
| Gold Magnet | Common | 1.8462% | — |
| Monster Tusk | Common | 1.8462% | — |
| Steel Safe | Common | 1.8462% | — |
| Silver Stirrer | Common | 1.8462% | — |
| Brass Funnel | Common | 1.8462% | — |
| Travel Lantern | Common | 1.8462% | — |
| Hound Whistle | Common | 1.8462% | — |
| Bounty Bell | Common | 1.8462% | — |
| Guild Badge | Common | 1.8462% | — |
| Four-Leaf Clover | Common | 1.8462% | — |
| Star Whetstone | Common | 1.8462% | — |
| Training Sword | Common | 1.8462% | — |
| Marksman Monocle | Common | 1.8462% | — |
| Serrated Dagger | Common | 1.8462% | — |
| Brass Metronome | Common | 1.8462% | — |
| Brass Binoculars | Common | 1.8462% | — |
| Hex Doll | Common | 1.8462% | — |
| Giantbane Sling | Common | 1.8462% | — |
| Ward Stake | Common | 1.8462% | — |
| Patience Candle | Common | 1.8462% | — |
| Flame Heart | Rare | 1.0625% | — |
| Frost Crown | Rare | 1.0625% | — |
| Thunder Feather | Rare | 1.0625% | — |
| Earth Core | Rare | 1.0625% | — |
| Wind Bell | Rare | 1.0625% | — |
| Deep Sea Pearl | Rare | 1.0625% | — |
| Sun Chalice | Rare | 1.0625% | — |
| Night Mask | Rare | 1.0625% | — |
| Lucky Dice | Rare | 1.0625% | — |
| Star Compass | Rare | 1.0625% | — |
| Toxic Fang | Rare | 1.0625% | — |
| Nebula Lens | Rare | 1.0625% | — |
| Moonlight Quiver | Rare | 1.0625% | — |
| Archmage Hat | Rare | 1.0625% | — |
| Valor Shield | Rare | 1.0625% | — |
| Gold Powder Keg | Rare | 1.0625% | — |
| Shadow Cloak | Rare | 1.0625% | — |
| Silver Spearhead | Rare | 1.0625% | — |
| Granite Fist | Rare | 1.0625% | — |
| Beast Claw | Rare | 1.0625% | — |
| Spirit Lamp | Rare | 1.0625% | — |
| Fairy Vial | Rare | 1.0625% | — |
| Amber Honeycomb | Rare | 1.0625% | — |
| Jade Shell | Rare | 1.0625% | — |
| Blade Ruby | Rare | 1.0625% | — |
| Eagle Brooch | Rare | 1.0625% | — |
| Plague Censer | Rare | 1.0625% | — |
| Guardian Stone | Rare | 1.0625% | — |
| Star Sundial | Rare | 1.0625% | — |
| Alchemy Crucible | Rare | 1.0625% | — |
| Golden Egg Nest | Rare | 1.0625% | — |
| Hunter's Hat | Rare | 1.0625% | — |
| Dragon Scale | Epic | 0.6364% | 3.5354% |
| Hero's Crest | Epic | 0.6364% | 3.5354% |
| Sands of Time | Epic | 0.6364% | 3.5354% |
| Berserker Horn | Epic | 0.6364% | 3.5354% |
| Starsong Lute | Epic | 0.6364% | 3.5354% |
| Summoner Scepter | Epic | 0.6364% | 3.5354% |
| Shaman Totem | Epic | 0.6364% | 3.5354% |
| Alchemy Flask | Epic | 0.6364% | 3.5354% |
| Dragon Egg | Epic | 0.6364% | 3.5354% |
| Clockwork Heart | Epic | 0.6364% | 3.5354% |
| World Tree Sapling | Epic | 0.6364% | 3.5354% |
| Reaper's Scythe | Epic | 0.6364% | 3.5354% |
| Twin Prism | Epic | 0.6364% | 3.5354% |
| Chimera Statue | Epic | 0.6364% | 3.5354% |
| Starlight Laurel | Epic | 0.6364% | 3.5354% |
| Legion Banner | Epic | 0.6364% | 3.5354% |
| Meteor Spike | Epic | 0.6364% | 3.5354% |
| Titan's Hammer | Epic | 0.6364% | 3.5354% |
| Fount of Plenty | Epic | 0.6364% | 3.5354% |
| Moon Rabbit Mortar | Epic | 0.6364% | 3.5354% |
| Binding Chain | Epic | 0.6364% | 3.5354% |
| Withered Rose | Epic | 0.6364% | 3.5354% |
| Philosopher's Stone | Legendary | 0.25% | 1.3889% |
| Phoenix Feather | Legendary | 0.25% | 1.3889% |
| Midas Glove | Legendary | 0.25% | 1.3889% |
| Twin Mirror | Legendary | 0.25% | 1.3889% |
| Binary Star Core | Legendary | 0.25% | 1.3889% |
| Wishing Star | Legendary | 0.25% | 1.3889% |
| Headsman's Axe | Legendary | 0.25% | 1.3889% |
| Ascension Halo | Legendary | 0.25% | 1.3889% |
| Vanguard Horn | Legendary | 0.25% | 1.3889% |
| Adventure Map | Legendary | 0.25% | 1.3889% |
| Stasis Crystal | Legendary | 0.25% | 1.3889% |
| Glass Greatsword | Legendary | 0.25% | 1.3889% |
| Golden Toad | Legendary | 0.25% | 1.3889% |
| Blood Moon Pendant | Legendary | 0.25% | 1.3889% |
| Sovereign Ring | Legendary | 0.25% | 1.3889% |
| Wild Crown | Legendary | 0.25% | 1.3889% |
2. Unseal
1 unseal: 350 Stardust or 25 Crystals; 5 at once: 1,575 Stardust or 113 Crystals (10% off). Free unseals from watching an ad work the same way.
One seal you have not opened yet, and whose condition you meet, is opened. Each seal has a weight from its rarity, and its chance is its weight divided by the total weight of the seals still left. Opened seals never come again, and a 5-unseal recalculates after each one. The seals you can open right now, with their exact chances, are under “Odds” in the game’s Unlocks tab.
The chances below are for when all 31 seals are left and every condition is met (total weight 926).
| Seal | Kind | Rarity | Weight | Chance | Condition |
|---|---|---|---|---|---|
| Dragon | Units | Common | 48 | 5.1836% | Best stage 5 |
| Fairy | Units | Common | 48 | 5.1836% | Best stage 8 |
| Golem | Units | Common | 48 | 5.1836% | Best stage 10 |
| Treant | Units | Rare | 34 | 3.6717% | Best stage 12 |
| Beast | Units | Rare | 34 | 3.6717% | Best stage 15 |
| Reaper | Units | Rare | 34 | 3.6717% | Best stage 18 |
| Spirit | Units | Rare | 34 | 3.6717% | Best stage 20 |
| Swarm | Units | Rare | 34 | 3.6717% | Best stage 22 |
| Automaton | Units | Epic | 14 | 1.5119% | Best stage 25 |
| Turtle | Units | Epic | 14 | 1.5119% | Best stage 28 |
| Poison Element | Units | Rare | 34 | 3.6717% | Best stage 12 |
| Nebula Element | Units | Legendary | 4 | 0.432% | Best stage 30 |
| Advanced Traits | Traits | Rare | 34 | 3.6717% | Best stage 15 |
| Ultimate Traits | Traits | Legendary | 4 | 0.432% | Unlock first: Advanced Traits · Best stage 30 |
| Relic Slot 2 | Features | Common | 48 | 5.1836% | Best stage 10 |
| Relic Slot 3 | Features | Epic | 14 | 1.5119% | Unlock first: Relic Slot 2 · Best stage 25 |
| Relic Slot 4 | Features | Legendary | 4 | 0.432% | Unlock first: Relic Slot 3 · 500 units in the codex |
| 3× Speed | Features | Common | 48 | 5.1836% | Best stage 15 |
| 4× Speed | Features | Rare | 34 | 3.6717% | Unlock first: 3× Speed · Best stage 35 |
| Auto Merge | Features | Common | 48 | 5.1836% | Best stage 12 |
| Vanguard | Features | Rare | 34 | 3.6717% | Best stage 20 |
| Quest Slot | Features | Rare | 34 | 3.6717% | 10 battles played |
| Class Pick | Features | Epic | 14 | 1.5119% | Best stage 30 |
| Element Pick | Features | Legendary | 4 | 0.432% | Unlock first: Class Pick · Best stage 35 |
| Shop Expansion | Features | Common | 48 | 5.1836% | 5 battles played |
| Rich Supplies | Features | Epic | 14 | 1.5119% | 20 battles played |
| Frost Lake | Maps & modes | Common | 48 | 5.1836% | Best stage 8 |
| Nebula Corridor | Maps & modes | Rare | 34 | 3.6717% | Best stage 15 |
| Lava Canyon | Maps & modes | Rare | 34 | 3.6717% | Best stage 22 |
| Moonlit Ruins | Maps & modes | Epic | 14 | 1.5119% | Best stage 28 |
| Endless Mode | Maps & modes | Rare | 34 | 3.6717% | Clear Normal |
3. Starter Pack (paid product)
300 Crystals, 3,000 Stardust and one Epic-or-better relic (once per account). The relic is Epic 77.7778% or Legendary 22.2222% of the time, then one relic of that rarity, each equally likely: the same chances as the “Guaranteed slot” column above.
4. For reference: summons in battle
Summons in battle cost only the gold earned in that battle, never a paid currency. These are the base rates by summon-upgrade level; luck from traits and relics raises every rate except Common together (Common never drops below 10%).
| Summon upgrade | Common | Uncommon | Rare | Epic | Legendary |
|---|---|---|---|---|---|
| Lv 0 | 94.5% | 5% | 0.5% | 0% | 0% |
| Lv 5 | 81.8% | 15% | 3% | 0.2% | 0% |
| Lv 10 | 68.3% | 25% | 5.5% | 1.2% | 0% |
| Lv 15 | 61.8% | 27.5% | 8% | 2.7% | 0% |
| Lv 20 | 55.3% | 30% | 10.5% | 4.2% | 0% |
| Lv 21 | 53.8% | 30.5% | 11% | 4.5% | 0.2% |
| Lv 25 | 47.8% | 32.5% | 13% | 5.7% | 1% |
| Lv 30 | 40.3% | 35% | 15.5% | 7.2% | 2% |
Merging three of a unit gives a random unit one tier up, and 5% of the time one tier more (traits and relics can raise this).