Card Pack

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Revision as of 01:03, 4 February 2019 by Ketura (talk | contribs) (Ketura moved page Booster Pack to Card Pack: Changing to use the official term)
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Booster Packs are the standard TCG method of adding cards to one's collection. In Artifact, each $2 pack earns the owner 12 random cards upon opening. Packs are also offered as rewards in various Expert Play modes.

Composition

All packs have a standard composition as follows:

Rarity Count
Common 8
Uncommon 3
Rare 1

Rarity aside, 1 card will always be a Hero card, and 2 will always be Item cards.

In addition, each Common card has a 5% chance to be upgraded to an Uncommon card, and then each Uncommon card has a 5% chance to be upgraded into a Rare card. These chances for each card are separate; it is possible to have multiple Rare or Uncommon upgrade procs. These chances are also cumulative; it is possible (although unlikely) for a Common card to be upgraded to an Uncommon, and then for that Uncommon to be upgraded to a Rare.


Probability

When generating the cards that are contained within a booster pack, Artifact first determines which slots will contain Hero and Item cards, and then separately determines the rarity of each slot afterwards. This means that Uncommon/Rare Item and Hero cards are somewhat more rare than one would assume based on their quantity.

For example, in the Call to Arms set, there are 77 rares, 12 of which are Heroes. This means 15.58% of all Rares are Heroes, but because of the ordering mentioned above, the Rares in any given booster pack have only a 8.33% chance to be Heroes. The discrepancy is much less pronounced for Items due to there being two slots in every pack: Items make up 16.88% of all Call to Arms Rares, but booster Rares have a slightly diminished 16.66% chance of being an Item.

Because of the upgrade chance, each booster pack has on average 1.17 Rare cards.

Additional probability information (as well as empiric data) can be found in this Reddit thread here.


Obtaining

All booster packs are priced at $1.99 USD. Purchasing booster packs in larger quantities does not provide a discount; this is only included for convenience.

Booster packs are offered as rewards for a set number of wins in the various Expert Play gauntlets: Expert Constructed, Phantom Draft, and Keeper Draft.

There are no means of grinding booster packs for free outside the methods described above. This is largely due to the existence of the Marketplace, where cards can be resold. If any free methods existed, cards could be farmed in coordinated efforts, which would crash the value of cards, like it did for items in Team Fortress 2.