Of the five champion cards in the Riftbound x T1 2025 Worlds Champion Collection, one comes with a catch. Seraphine, Not Alone, the card Keria personally selected, is pulled directly from Riftbound's upcoming Radiance set rather than an already-released one.
That means anyone who pulls this card from a Signature Edition or Player Bundle can display it or trade it right away, but can't actually use it in competitive Riftbound play yet.
Here's what's confirmed about the legality gap, why it exists, and what it means for players building around this specific card.
Keria personally chose Seraphine for this collection, and Riot honored that pick even though it meant including a card from a set that hadn't released yet. Swapping in an already-legal card instead would have overridden the player's own selection, which appears to have mattered more to Riot than avoiding a legality gap.
That decision suggests Riot prioritized the collection's personal, player-driven concept over keeping every included card immediately tournament-ready.
A card that isn't tournament-legal can still be owned, displayed, traded, and even played in casual, non-sanctioned games where both players agree to allow it. The restriction specifically applies to official, sanctioned competitive play.
For collectors who never intended to play competitively with this card anyway, the legality gap changes nothing practical about owning it.
Once Radiance releases, Seraphine, Not Alone becomes usable in the same official competitive formats as every other legal Riftbound card. At that point, the T1 collection's five cards become fully aligned in playability for the first time.
Players specifically building a deck around this card should treat October 23 as the actual start date for competitive planning, not the date they physically received the card.
Radiance isn't built around this one card, it's a full fifth Riftbound set adding both Seraphine and Ekko to the wider card pool for every player, not just T1 collection owners. Seraphine, Not Alone specifically is the T1 collection's tie-in to that broader release.
Understanding that connection helps explain why this particular card has a release-date dependency the other four T1 cards don't share.
A card's legality status can genuinely affect how collectors and traders value it in the meantime. Some may discount Seraphine, Not Alone slightly while it's unusable competitively, while others may value it just as highly given the certainty that Radiance's October 23 date is already locked in.
Either approach is reasonable, since the legality gap here is a known, dated, and temporary condition rather than an open-ended uncertainty, which meaningfully lowers the risk compared to a card with no confirmed release path at all.
Whether you're holding Seraphine now for October or planning to pick up fresh Radiance pulls when the set drops, protection needs to be ready either way. EVORETRO's 180PT premium toploader pack covers fresh Radiance pulls the moment packs open.
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Players who already know they want to build around Seraphine, Not Alone have roughly seven weeks between now and Radiance's release to plan the rest of their deck around her, rather than scrambling once the set actually drops.
That planning window is a real advantage over waiting until release day to start thinking about deck construction, especially since Radiance also introduces Ekko, giving deckbuilders two new champions to consider together rather than just one.
Using the wait productively, researching what's known about Radiance's broader card pool so far, puts a player ahead of the curve the moment the card actually becomes legal.
It's pulled from Riftbound's upcoming Radiance set, which hasn't released yet.
October 23, 2026, when Radiance releases.
Yes, ownership, trading, and casual play aren't affected, only official sanctioned competitive play.
Yes, Ekko joins the card pool alongside Seraphine.
Whether Seraphine is already sitting in your collection or you're planning to pick up Radiance fresh, having storage ready ahead of the release date keeps every pull protected from day one. Grab EVORETRO's 180PT premium toploader pack before Radiance arrives.
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