Darkmoon Faire Treasures contains card packs as rewards, whose contents have their own probabilities not listed as part of this system. For more information about the probabilities of the cards within Card Packs and for other details about how card packs work, please refer to the Card, Packs, Bundle Packs article.
A full list of Hearthstone cards can be found at https://hearthstone.blizzard.com/en-us/cards/ - Card packs are named after their expansion and the Cards tab at the top of that page can be used to filter for a specific expansion by name and rarity.
Darkmoon Faire Treasures is a premium system wherein you spend Runestones to randomly receive one of the featured Treasures. There are no duplicates or substitutions; you will only receive one of the displayed Treasures and you cannot receive the same Treasure twice. Each time you are rewarded with one of the Treasures, the chance for each remaining increases proportionally. You will obtain all Treasures within 10 pulls.
The chances of receiving each Treasure, based on your very first pull in Darkmoon Faire Treasures, are displayed below:
| Treasure (Patch 34.2) | Weight | Chance |
| Common Signature Card – Infested Breath x 2 | 300 | 30.0000% |
| The Lost City of Un’Goro Golden Card Pack x 1 | 280 | 28.0000% |
| Rare Signature Card – Sanguine Infestation x 2 | 110 | 11.0000% |
| Monster Slayer Vivian Hunter Hero Skin | 100 | 10.0000% |
| Epic Signature Card – Hideous Husk x 2 | 75 | 7.5000% |
| Dirdra Demon Hunter Skin and Card Back | 65 | 6.5000% |
| Random Golden Legendary Card from Lost City of Un’Goro x 1 | 30 | 3.0000% |
| Signature Legendary Card – Torga | 25 | 2.5000% |
| Diamond Legendary Card – High Cultist Herenn | 14 | 1.4000% |
| Yogg-Saron Mage and Warlock Mythic Hero Skin | 1 | 0.1000% |
Darkmoon Faire Treasures uses a weight system to determine the probability of each Treasure being rewarded. Each Treasure has a predetermined weight (see table above). After a Treasure is pulled, its weight becomes zero (0). The chance of receiving an individual Treasure is calculated by dividing its weight by the total weight of all Treasures remaining, and then multiplying by 100. Below is an example of how the chances of receiving Treasures change when some of the other Treasures have already been pulled:
| Treasure (Patch 34.2) | Weight | Chance |
| Common Signature Card – Infested Breath x 2 | 0 | PULLED |
| The Lost City of Un’Goro Golden Card Pack x 1 | 280 | 54.7945% |
| Rare Signature Card – Sanguine Infestation x 2 | 0 | PULLED |
| Monster Slayer Vivian Hunter Hero Skin | 100 | 19.5695% |
| Epic Signature Card – Hideous Husk x 2 | 75 | 14.6771% |
| Dirdra Demon Hunter Skin and Card Back | 0 | PULLED |
| Random Golden Legendary Card from Lost City of Un’Goro x 1 | 30 | 5.8708% |
| Signature Legendary Card – Torga | 25 | 4.8924% |
| Diamond Legendary Card – High Cultist Herenn | 0 | PULLED |
| Yogg-Saron Mage and Warlock Mythic Hero Skin | 1 | 0.1957% |
Each time you use Runestones to receive a Treasure, the cost of the next reward increases as follows:
| Pull | Cost in Runestones | USD / EUR equivalent* |
| 1 | FREE | FREE |
| 2 | 200 | 2 |
| 3 | 400 | 4 |
| 4 | 600 | 6 |
| 5 | 1000 | 10 |
| 6 | 1300 | 13 |
| 7 | 1800 | 18 |
| 8 | 2500 | 25 |
| 9 | 3000 | 30 |
| 10 | 5000 | 50 |
| Total | 15800 | 158 |
*Runestones to USD / EUR conversion rates based on most expensive Runestone price-per-unit available in shop, disregarding any quantity discounts and other promotional offers.