In this third booster set in the Trinity Cluster, players can accompany Alex Sansta as she roams through The Kingdoms of the Light Palace. The set features five new characters and a new Vehicle frame as a brand-new type of regalia. There will also be five new card abilities in this set: Eclipse, Ambush, Depths, Overgrowth and Terrifying. The Mobilize and Resonance deck themes will be reinvigorated by cards in this set, and the Fate theme will also be introduced by the booster set.
Timeless Eclipse of the Underworld has 100 kinds of cards: 41 normal, 22 rare, 4 Rare/SSR, 18 super rare, 5 marvel rare, 5 Rulers, a J-Ruler, 1 SSR, 2 XR, 5 secret rares, and 2 special secret cards. Displays come with 36 packs and a buy-a-box promo. There will also be a prerelease kit available for this set, which includes: 72 packs, 12 PR cards, 2 playmats, 50 basic magic stone cards, and 12 basic ruler cards.
Force of Will, Inc. also released Masterpiece "Pilgrim Memories" (see "'Force of Will: Masterpiece Pilgrim Memories'").
