- Riftbound Radiance rules include sealed Pre-Rift play and constructed Summoner Skirmishes.
- Pre-Rift Events use one player kit, five boosters, and one promo card per participant.
- Summoner Skirmishes use 1v1 Constructed, best-of-three matches, Swiss rounds, and an optional Top Cut.
- Showdown Decks provide two 56-card preconstructed decks for immediate two-player play.
- Release date: Radiance launches on October 23, 2026, after Pre-Rift Events from October 16–22.
Riftbound Radiance rules: What the Set Supports
Riftbound Radiance is the fifth booster release for the Riftbound trading card game. The set is scheduled to release on October 23, 2026, with more than 180 cards, over 60 showcase cards, new Legends, Units, Spells, and additional mechanics. This guide focuses on the official event and product rules available for Radiance rather than inventing card-specific effects that have not been published here.
The set introduces Ekko, Evelynn, and Seraphine as featured Champions joining the Riftbound card pool. For players, the most important distinction is between sealed learning events, constructed competitive events, and flexible weekly store programs.
Sealed Learning
Pre-Rift Events use a player kit, five Radiance boosters, and a promo card to create a deck for a paired tournament.
Constructed Competition
Summoner Skirmishes are 1v1 Constructed events with best-of-three matches, Swiss rounds, and an optional Top Cut.
Two-Player Start
The Evelynn versus Seraphine Showdown Deck includes two ready-to-play 56-card decks and two Radiance boosters.
| Radiance feature | Official detail | Best use |
|---|---|---|
| Booster release | More than 180 cards and 60-plus showcase cards | Collection building and deck customization |
| Featured Champions | Ekko, Evelynn, and Seraphine | Exploring new Champion options |
| Showdown Deck | Two 56-card preconstructed decks | Learning with a friend |
| Pre-Rift format | Sealed deck construction | First look before launch |
| Summoner Skirmish format | 1v1 Constructed, best of 3 | Competitive local play |
Use this article for Radiance event formats, setup, and scheduling. For card interactions, banlists, and errata, consult the official Riftbound Rules Hub before a tournament.
Radiance Release and Event Calendar
Radiance has a clear 2026 schedule for product release and organized play. The launch date is October 23, 2026, while Pre-Rift Events provide an earlier sealed preview from October 16 through October 22, 2026.
Store registration deadlines matter because event kits and promotional materials depend on timely scheduling. The official registration deadline for both Pre-Rift Events and Radiance Summoner Skirmishes is August 29, 2026.
| Activity | 2026 date or window | Format or purpose |
|---|---|---|
| Event scheduling opens | July 31, 2026 | Stores can begin creating event plans |
| Registration deadline | August 29, 2026 | Deadline for Radiance event registration |
| Pre-Rift Events | October 16–22, 2026 | Sealed preview experience |
| Radiance release | October 23, 2026 | Booster set launch |
| Summoner Skirmish I | November 9–December 13, 2026 | Competitive 1v1 Constructed |
| Summoner Skirmish II | Begins December 14, 2026 | Second competitive event window |
| Nexus Nights | Weekly during the season | Store-preference format |
Stores should create Pre-Rift and Summoner Skirmish events in the Riftbound Gaming Network by August 29, 2026. Late registrations may not be accepted, and kit allocations are limited.
Nexus Nights are designed as flexible weekly events. A store may select Constructed, Sealed, or Modified Champion Deck play according to local preference. Participation promo packs are intended for players who attend these weekly events, while supplies last.
The official Riftbound: Radiance dates and details document contains the published schedule, product information, and event guidance.
Pre-Rift Event Setup Guide
Pre-Rift Events are sealed experiences designed to give players an early look at Radiance. Each participant receives a Pre-Rift Player Kit and builds a deck from the materials inside. The event then uses a paired tournament structure.
A Pre-Rift Event Kit contains 16 individual player kits. Each individual kit includes one mini-preconstructed deck, five Radiance booster packs, and one Pre-Rift promo card.
| Player kit component | Quantity | How it is used |
|---|---|---|
| Mini-preconstructed deck | 1 | Starting point for deck construction |
| Radiance booster packs | 5 | Adds cards and customization options |
| Pre-Rift promo card | 1 | Included in the sealed card pool |
| Player kits per event kit | 16 | Supports up to 16 participants |
Receive the Player Kit
Begin with one individual Pre-Rift Player Kit containing the mini-preconstructed deck, five Radiance boosters, and one promo card.
Build the Sealed Deck
Combine the included mini-preconstructed deck, booster cards, and promo card to create the deck used for the event.
Review the Card Pool
Check the Champion Legend, Champion Unit, and newly opened cards before deciding how to shape the sealed deck.
Play the Paired Tournament
Enter the paired tournament with the deck you constructed and follow the event rules provided by the hosting store.
The mini-preconstructed deck contains 15 cards, including a Champion Legend and Champion Unit. Because every participant receives a defined pool, the format is accessible to newer players while still rewarding careful deck construction.
Bring sleeves, a way to track game information, and enough time to read your opened cards. The sealed format rewards flexible evaluation more than pre-event deck lists.
Summoner Skirmish and Nexus Night Formats
Summoner Skirmishes are the competitive local-level event for Radiance. Their published format is 1v1 Constructed, played as best of three matches, with Swiss rounds and an optional Top Cut. Stores can host one Summoner Skirmish during each event window.
The competitive structure differs from Pre-Rift play because players bring constructed decks rather than building from a sealed kit. This makes preparation, deck familiarity, and side-by-side testing especially valuable.
| Program | Player format | Event structure | Main purpose |
|---|---|---|---|
| Pre-Rift Event | Sealed | Paired tournament | Preview Radiance before launch |
| Summoner Skirmish | 1v1 Constructed | Best of 3, Swiss, optional Top Cut | Competitive local play |
| Nexus Night | Store preference | Weekly flexible structure | Ongoing community play |
| Showdown Deck session | Two preconstructed decks | Casual two-player setup | Learn with a friend |
Summoner Skirmish event kits include participation promos, Top Cut promos, a Champion promo, and a Champion playmat. Supplies are limited, and stores are encouraged to register early. Official organized play events do not allow cash prizing; store credit or booster prizes may be acceptable additions under the stated policy.
Nexus Nights have a different goal. They are recurring weekly events rather than a single competitive championship-style gathering. Stores may choose Constructed, Sealed, or Modified Champion Deck formats based on their community.
Choose Pre-Rift for sealed discovery, Summoner Skirmish for structured competition, and Nexus Night for a recurring local play routine. Each program serves a different player need.
Showdown Deck and Player Checklist
The Radiance Showdown Deck product features Evelynn versus Seraphine. It contains two full 56-card preconstructed decks, two Radiance booster packs, two full-size paper playmats, deckboxes, and a rules and deck-building guide.
This setup is intended for two people who want to begin playing without separately assembling two complete decks. The boosters also provide an immediate path toward customization after the first games.
| Product item | Included amount | Practical role |
|---|---|---|
| Evelynn preconstructed deck | 1 deck | Ready-to-play starting strategy |
| Seraphine preconstructed deck | 1 deck | Ready-to-play opposing strategy |
| Radiance boosters | 2 | Early customization options |
| Paper playmats | 2 | Dedicated play areas |
| Deckboxes | Included | Card storage |
| Rules and deck-building guide | Included | Setup and learning support |
Radiance Preparation Checklist:
- Choose between sealed, constructed, or weekly store play
- Check the event date and registration deadline
- Prepare sleeves and a clear card-storage method
- Review the official Rules Hub for current rules and errata
- Confirm the store’s format and prize policy before attending
For a first session, use the Showdown decks as supplied and focus on learning the card flow. Afterward, open the included boosters and compare possible additions rather than changing both decks at once. This makes it easier to understand which cards alter each strategy.
The Showdown Deck is most useful when both players begin with the supplied decks, complete several games, and customize only after learning each Champion’s baseline plan.
FAQ: Riftbound Radiance rules
Q: When does Radiance release?
Riftbound Radiance is scheduled to release on October 23, 2026. Pre-Rift Events are scheduled for October 16 through October 22, 2026.
Q: What format do Pre-Rift Events use?
Pre-Rift Events use Sealed play. Each participant builds a deck from one mini-preconstructed deck, five Radiance booster packs, and one Pre-Rift promo card.
Q: What are the Summoner Skirmish rules?
Summoner Skirmishes use 1v1 Constructed with best-of-three matches, Swiss rounds, and an optional Top Cut. Stores can host one event in each published event window.
Q: What is included in the Radiance Showdown Deck?
The Evelynn versus Seraphine Showdown Deck includes two 56-card preconstructed decks, two Radiance boosters, two paper playmats, deckboxes, and a rules and deck-building guide.
Before attending, verify the store’s scheduled format, review current official rules and errata, and confirm whether the event is sealed, constructed, or store-preference play.