Released on August 16, the 292 card System Lords expansion focuses on expanding the Villain aspect of the Stargate TCG. Starter Decks feature Ba'al, Apophis, Osiris, and Yu. It introduced a new feature called Dominion and expanded upon existing traits from the SG-1 set such as Russians, Tok'ra, and NID. The set is made up of 66 Rare cards, 66 Uncommon cards, 100 Common cards, 6 Ultra-Rare cards, and 54 Starter-deck-only cards.