Several Riftbound deck builders are in active use today, each with different trade-offs.
Piltover Archive (piltoverarchive.com), Riot's official builder
The first-party Riftbound deck builder. Includes every legal card, enforces deck construction rules at build time (Legend slot, Signature Spell slot, main deck size, rune deck size, domain restrictions), and exports finished decks as plain text. Bonus features include a hand simulator for goldfishing openings and "budget variant" suggestions that swap in cheaper alternative cards.
Strengths: complete catalog, rules enforcement, official-source authority, hand simulator, and shareable deck URLs that load in any browser.
Weaknesses: the search UI leans on dropdowns rather than chips, and text search is slower than a database-first interface. For pure card lookup, most players still bounce out to a dedicated card database.
Community builders
- Magical Meta (magicalmeta.ink/riftbound/deckbuilder):advanced builder with live TCGplayer prices, deck statistics, and TTS export for online play. Supports all sets including the latest UNL release.
- Riftbound.gg:deck builder paired with tier lists and a collection tracker. Updates aggressively with each tournament weekend.
- Riftbound.build (riftbound.build/deckbuilder):lightweight builder focused on shareable deck URLs.
- RiftMana (riftmana.com/decks):builder integrated with the site's community deck and tournament feeds.
- Riftium (riftium.com):emerging card database with a deck hub. Smaller but actively developed.
Riftbound deck builder on this site, coming soon
A drag-and-drop deck builder is in development at /builder. The feature spec:
- Pick a Legend; Signature Spell auto-attaches; main and rune deck slots open.
- Click cards from the database to add; sliders enforce per-card copy limits and per-Domain deck legality.
- Shareable URLs encode the full deck state, no account needed.
- One-click TCGplayer mass-entry export, same as the card pages.
Currently the page is a placeholder. The data layer (card schema, domain rules, TCGplayer affiliate plumbing) is already wired; only the builder UI itself is pending.
Building without a tool
You can build a deck by hand using the card database alone: filter by your Legend's Domain (or pair of Domains for dual-Domain cards), then sort by Energy Cost to design a curve. Export the list as text and paste it into TCGplayer's mass entry page directly. This works fine for a first deck; the rules-enforcement features of a dedicated builder mostly matter once you're tuning a competitive list.
What a good first deck looks like
For new players, a single-Domain Origins-era list around 25-30 distinct cards is plenty. Mix Units across the cost curve, include a handful of Spells for removal and tempo, and pick three Battlefields whose triggered effects support your gameplan (only one of your three will randomly come into play each game in 1v1). Piltover Archive's pre-built starter templates are the fastest way to see a clean working example before tuning your own.