The Riftbound League of Legends TCG: Spiritforged Slim Booster Box (Simplified Chinese) is the second expansion set for the Riftbound Trading Card Game, released on December 12, 2025. This "Slim" configuration is characterized by having more packs but fewer cards per pack compared to the "Jumbo" version.

• Pack Count: 24 packs per box.
• Cards Per Pack: 5 cards per pack.
• Guarantee: At least 1 Holo card is included in every pack.