Lost Lands is the fourth set of cards in Shadow Era, following Shattered Fates.
It is followed by Campaigns.

Lost Lands contains 202 new cards and items of which 8 are multi-classes.
It was released in two parts (first part - second part).

New gameplay features in the set include:

• A new type of card called Location.
  

These cards are placed between the two game mats and they will represent where the battle between our characters is currently taking place; this will change throughout the game to represent either a physical journey or a portal opening between places. Sides can win or lose control of locations, which adds a further meaning to the idea of "lost lands".

• A new mechanic called Seek, which allows you to search your deck for a card meeting some criteria.
  
• Fully neutral allies, representing characters so far not involved in the conflict, with their own agendas and motivations.
  
• The proper debut of the Aldmor ally alignment and their artifacts, which have so far only been teased in Shadow Era.
  
• Bolstering of each of the ally alignments that were established in Shattered Fates, as more allies from those alignments are brought into the conflict.