From the Publisher:

Welcome to the Crucible! An ever-evolving, expanding univere welcoming all Archons to embark on a journey of discovery. KeyForge: Discovery helps new archons jump into the battles for the vaults with a solid foundation of what KeyForge has to offer.

KeyForge: Discovery is a set of more than 300 classic KeyForge cards chosen for their simplicity, intuitiveness, and fun factor. Every unique deck generated from this set provides an easy introduction to the game, with a focus on core game mechanics and only a minimal use of keywords.

In KeyForge: Discovery, you won’t see cards making use of enrage, stun, or ward counters, nor will you see expansion mechanics such as the tide, token creatures, or haunted effects. What you will see is an exciting mixture of card combinations pulled from nearly every KeyForge set.

KeyForge: Discovery 1-Player Starters each contain one unique deck, as well as the tokens and rules required for one player to get started with the game.