In short: the numbers on this page come from the same configuration as the Odds page in the game. Before you pay for a summon or buy a chest with gems, the game shows the full odds again.
1. Summons
Summons open at player level 4. One pull costs 50 gems and ten pulls cost 450 gems (ten for the price of nine); one free pull a day, reset every day at 00:00 (UTC+8). Each pull draws one row of the table below on its own, and the server decides the result.
| Prize | Chance |
|---|---|
| Legendary: 2.00% in total | |
| 150 cards of the featured family of the week | 2.00% |
| Epic: 15.00% in total | |
| 60 Iron Bastion cards | 1.67% |
| 60 Star Ballista cards | 1.67% |
| 60 Frost Spire cards | 1.67% |
| 60 War Catapult cards | 1.67% |
| 60 Life Banner cards | 1.67% |
| 60 Beetle Hive cards | 1.67% |
| 60 Storm Coil cards | 1.66% |
| 60 Venom Vat cards | 1.66% |
| 60 Golem Circle cards | 1.66% |
| Rare: 53.00% in total | |
| 25 Iron Bastion cards | 4.00% |
| 25 Star Ballista cards | 4.00% |
| 25 Frost Spire cards | 4.00% |
| 25 War Catapult cards | 4.00% |
| 25 Life Banner cards | 4.00% |
| 25 Beetle Hive cards | 4.00% |
| 25 Storm Coil cards | 4.00% |
| 25 Venom Vat cards | 4.00% |
| 25 Golem Circle cards | 4.00% |
| 600 gold | 17.00% |
| Common: 30.00% in total | |
| 10 Iron Bastion cards | 2.00% |
| 10 Star Ballista cards | 2.00% |
| 10 Frost Spire cards | 2.00% |
| 10 War Catapult cards | 2.00% |
| 10 Life Banner cards | 2.00% |
| 10 Beetle Hive cards | 2.00% |
| 10 Storm Coil cards | 2.00% |
| 10 Venom Vat cards | 2.00% |
| 10 Golem Circle cards | 2.00% |
| 250 gold | 12.00% |
| Total | 100.00% |
1.1 Pity
After 39 pulls in a row without the featured prize, pull number 40 is always the featured prize (the free pull counts too); the count starts over when you get it. The summon screen in the game shows how many pulls are left. The featured prize has a 2.00% chance on every pull; with pity it comes at about 3.61% overall, or about once every 27.7 pulls on average.
1.2 Featured family of the week
The featured tower family changes every Monday at 00:00 (UTC+8), in this order, and then starts over:
- War Catapult
- Life Banner
- Beetle Hive
- Iron Bastion
- Star Ballista
- Frost Spire
1.3 Other rules
- A tower family you do not own yet unlocks with the first cards you pull for it.
- A skin you already own turns into 60 cards of its family when you pull it again; cards of a family at the top tower level turn into gold.
- No collection, codex or achievement reward asks you to collect a set of prizes that only summons give; every tower family that affects strength can be earned for free.
2. Chests
Chests come from match wins and other rewards in the game, and some can be bought with gems (the chest shelf in the shop, and now and then the daily deals). A chest bought with gems follows exactly the same rules as the same chest earned in any other way.
| Chest | Price |
|---|---|
| Silver Chest | 30 gems |
| Gold Chest | 120 gems |
| Magic Chest | 300 gems |
2.1 What each chest holds
Every chest holds gold and tower cards; gems and avatars come with the chances in the table below. The cards are split at random into a few stacks for different families, picked at random from the families you own whose tower level is not maxed yet (each family is equally likely; when all are maxed, from every family you own).
| Chest | Cards split over | Gem chance | Gems | Avatar chance |
|---|---|---|---|---|
| Wooden Chest | up to 2 families | 10.00% | 1–3 | — |
| Silver Chest | up to 3 families | 25.00% | 2–6 | — |
| Gold Chest | up to 4 families | 60.00% | 5–12 | — |
| Magic Chest | up to 5 families | 100.00% | 12–24 | 30.00% (while a chest avatar is not owned yet) |
2.2 Gold and cards
Gold and cards grow with your player level; the gold is a random amount in the range, and so is the number of gems.
| Player level | Wooden Chest | Silver Chest | Gold Chest | Magic Chest |
|---|---|---|---|---|
| Lv1–3 | 24–40 gold, 6 cards | 60–90 gold, 15 cards | 200–280 gold, 45 cards | 480–620 gold, 110 cards |
| Lv4–6 | 32–54 gold, 8 cards | 81–122 gold, 20 cards | 270–378 gold, 61 cards | 648–837 gold, 149 cards |
| Lv7–9 | 41–68 gold, 10 cards | 102–153 gold, 26 cards | 340–476 gold, 77 cards | 816–1,054 gold, 187 cards |
| Lv10–12 | 49–82 gold, 12 cards | 123–184 gold, 31 cards | 410–574 gold, 92 cards | 984–1,271 gold, 225 cards |
| Lv13 and up | 58–96 gold, 14 cards | 144–216 gold, 36 cards | 480–672 gold, 108 cards | 1,152–1,488 gold, 264 cards |
3. Regions and other notes
- Where the law bans or restricts paid random content, we switch off summons paid with gems and random chests bought with gems, and keep direct purchases and the free ways (see section 6.4 of the Terms of Service).
- We do not lower published odds while a summon is running; when the numbers change, this page and the in-game Odds page change together.
- Gems can be bought with real money through Google Play and can also be earned for free in the game. Random prizes are not guaranteed: buying or taking part does not mean you will get a particular item.