Heterochromia

Heterochromia is a divination card. A set of two can be exchanged for a random unique Two-Stone Ring.

As of version 3.4.0, according to a player's video, out of 100 sets, the cards only gave Berek's rings (league-specific at that time) and did not grant (not league-specific) or  (league-specific and formerly a boss drop) or Precursor's Emblem (formerly tied to Delve league which went to core, and a vendor recipe item).

Another player, had also posted an Excel table in reddit in 2017 (around version 3.0.0), claiming he obtained one Call of the Brotherhood, out of 30 sets, with rest of them were Berek's rings. Specifically, 2x which was the most expensive of the Berek's rings.

It is not certain that it was due to drop weighting of the items or the card was designed have a special weighting table to grant Berek's rings most of the time.

Supporter attribution
This card has not yet been assigned or the creator wishes to remain anonymous.

Version history

 * Introduced to the game.
 * }