How does scarcity work?
Quality and Rarity on Serra.
The scarcest card on Serra - Scarcity = Quality x Rarity (0.01% = 0.1 x 0.1)
Scarcity has two dimensions on Serra. There is the Rarity dimension and the Quality dimension. Multiplying both values gives you the overall scarcity of a card.

What is Rarity and how does it work?

Rarity only applies to Transcendent Set cards and refers to how rare in number a card may be. This could take the form of special Serran characters or technology. However, the level of rarity does not necessarily relate to how powerful the card might be in gameplay.

What are my chances of getting a Legendary card in my Transcendent crate?

Cards are generated on opening using a formula based on the following Rarity probability rate:
  • Common 70%
  • Rare 24%
  • Epic 5%
  • Legendary 1%
You are guaranteed to receive at least one Rare card in each Transcendent crate.
There is no set number allocated to each card so different cards of the same Rarity will vary in total supply. For example, there may be more Bagni cards than Chisaku cards even though they are both Legendary in Rarity.

What is Quality and how does it work?

Quality applies to all cards and refers to the frame and associated cosmetics of cards.
Transcendent Sets will have the following draw chance on opening your crate:
  • Painted Metal 84%,
  • Bronze 10%,
  • Silver 5%,
  • Gold 1%
Base Sets will have the following draw chance on opening your crate:
  • Bronze 75%
  • Silver 24%
  • Gold 1%
You are guaranteed to receive at least one Rare card in each Base crate.

What is the scarcest card on Serra?

At the moment we don't know exactly which card will be the scarcest on Serra. However, we do know that whichever card it is, it is likely that it'll be a golden version of a Legendary card.
The chances of you pulling one of these from a crate is 1 in 10,000 and is worked out by multiplying the chances of getting a Gold card (1%) with the chances of getting a Legendary card ->
(0.010.01)100=0.01(0.01*0.01)*100 = 0.01%
%
When the card explorer is released you will be able to keep track of the quantities of all existing cards.