Riftbound Deck-Building Rules: How Many Cards in a Riftbound Deck?
Riftbound deck-building rules trip people up when they're coming from another TCG. The structure looks familiar until it doesn't. We get asked by new players all the time - how many cards in a Riftbound deck? That’s the tricky part. You have more than one deck!
Your main deck holds exactly 40. Your rune deck adds another 12. Then you've got a Legend and a Champion outside both decks, plus three Battlefield cards selected before each game. Clearly there’s more to building a Riftbound deck than meets the eye, but don’t worry - we’re going to break it all down for you here in this guide.
We carry Riftbound cards across every set at Danireon, from sealed product down to singles. This Riftbound deck-building guide actually explains the reasoning behind each number and will leave you feeling confident about next steps.
Reach out any time and we'll help you out! In the meantime, learn about the Riftbound deck-building rules below.
What is Riftbound?
Riftbound is the official League of Legends trading card game (TCG) from Riot Games. They took the champions, abilities, and lore that millions of players already knew and loved from the video game and built a physical TCG around all of it.
League champions like Fiora and Vi show up as playable cards with kits that actually mirror how they function in the game. Dozens of champions are represented across the three sets released so far - which is to say there’s a lot more to come with this series.
Origins kicked things off with close to 300 cards. Spiritforged built on that with new champions and fresh mechanics. The latest expansion, Unleashed, brought over 220 cards and 30-plus alternate art variants to the pool.
The idea of building around a core strategy will click immediately if you're coming from Magic or Pokémon. The resource system and deck composition are where Riftbound splits off on its own, though.
What pulls a lot of players in is how much the card designs respect the source material. Fiora's card rewards precise combat timing, exactly how she plays in League. Vex punishes opponents who overextend. The transition to paper feels intuitive if you already know the champions.
Riftbound also supports multiple competitive formats. In best-of-one, your active Battlefield is randomly selected from your three. In best-of-three, you choose which one goes live, adding a layer of strategy before the game even starts.
We compared it side by side with Riot's digital card game in Riftbound vs Legends of Runeterra if you want that deeper look. In the meantime, let’s dig into the most basic of Riftbound deck-building rules.
How Many Cards in a Riftbound Deck?
How many cards in a Riftbound deck is a five-part answer, not a single number.
Main Deck - 40 Cards
Like we said from the jump, the main deck holds exactly 40 cards. That's where your units and spells go, alongside gear and signature cards. No flexibility on the count. You can include up to three copies of any single card name to control how consistently you draw your key pieces.
Rune Deck - 12 Cards
Your rune deck sits beside the main deck at exactly 12 cards. Every rune has to match your Legend's Domain Identity, but the ratio between your two rune colors is your call. That’s one of the first meaningful deckbuilding decisions you'll face. More on that in a moment.
Legend, Champion, and Battlefield Units
There are three more pieces outside both decks.
- Your Legend occupies the Legend Zone for the entire game and never leaves. It defines your Domain Identity (the two colors your deck is allowed to use) and provides a Legend Ability.
- Your Champion Unit starts in the Champion Zone and serves as your strategy's anchor from turn one.
- You then select three Battlefield cards before the game begins. One goes active per match.
A complete deck comes to 57 cards when you add it all up. 40 in the main deck and 12 in the rune deck. One Legend, one Champion, three Battlefields. Riftbound deck-building rules lock every single one of those numbers.
The Three Main Components of Riftbound Deck-Building
Understanding the Riftbound deck-building rules is the first step. But you need to get comfortable with three systems that connect across every game once you grasp how many cards in a Riftbound deck you need to compete.
Domain Identity
Your Legend determines what goes in the deck. Each Legend has two of the game's six Domain colors (Fury, Calm, Mind, Body, Chaos, and Order). Every card in your main deck and rune deck has to match at least one of those two colors. If a card shows two color symbols, both need to fall within your Legend's identity.
The deck is illegal even if you have just one off-color card. Out of all the Riftbound deck-building rules, this one catches new players the most.
Your Legend choice also shapes your strategic options in the grand scheme of things. A Legend pairing Fury and Chaos opens up aggressive and disruptive tools. Calm and Mind are all about patience and resource management.
This is to say, you must think about how you want to play before locking in a Legend. Switching later means rebuilding the entire deck from scratch, and even though building a Riftbound deck is fun, it’s a lot of work (and money)!
The Rune System
Runes pay for everything. You channel two from your rune deck each turn and decide what to do: exhaust for Energy or recycle for Power.
Energy is generic. Any rune produces it regardless of color. Power is not. If a card costs two Fury Power, you need Fury runes specifically. No substitutes.
This is where your rune ratio starts to matter. Lean too hard into one Domain and your other color's cards sit dead in hand. Split too evenly, and you can't generate enough concentrated Power for your biggest plays. There’s a balance to be struck here.
Say your deck runs heavy Fury costs with a handful of Mind cards. You'd want most of your 12 runes in Fury so you can reliably cast your main threats. Your Mind cards would need low Power requirements or lean on Energy to function.
Building a rune deck without accounting for this ends games before they start.
Card Types and Their Roles
Units make up most of your board and handle both attacking and blocking. Spells fire off from hand and cover everything from removal to card advantage.
Gear attaches to units and modifies their stats or grants new abilities. Some gear is cheap utility you play early to get incremental value. Other pieces are late-game investments that turn a mid-range unit into a serious problem.
Signature cards round out the main deck. These are tied to your Champion's tag and carry effects that plug directly into your Champion's game plan. You can only run three Signature cards total per matching Champion tag, so you have to make every slot count.
Tips on Building a Riftbound Deck That's Positioned to Win
Knowing how many cards in a Riftbound deck is the starting point. This Riftbound deck-building guide wouldn't be worth much if it stopped at the numbers.
There's a real difference between a legal deck and a good one. Every build that follows the rules is technically legal, but plenty of legal decks lose before they start because the pieces don't work together.
Here are some tips on diving into the world of Riftbound headfirst, poised for success.
Get Your Rune Ratio Right First
Your 12 rune cards split between two Domain colors. The correct ratio all depends on what your main deck needs to cast. Go through your 40 cards and count up the Power costs by color. Does the majority lean toward one Domain? Your rune split should reflect that.
A 7/5 or 8/4 ratio is standard for most builds. A flat 6/6 only works when your deck's Power costs are legitimately balanced across both colors.
One thing newer players miss: the ratio also affects your options when channeling runes each turn. You'll almost always channel the dominant color if your split is 10/2. Reliable, sure - but it leaves you exposed when you need the secondary Domain and can't find it in the deck.
Build Around Your Champion
Riftbound deck-building rules lock your color identity through your Legend, but synergy is the real constraint. Your Champion Unit and its Signature cards influence what the deck is optimized to accomplish each game.
An aggressive Champion needs early-game units and cheap spells to keep up the pressure. A control Champion needs removal tools and ways to generate card advantage.
Picking strong cards that don't reinforce your Champion's plan gives you a collection of individually powerful pieces that fold to a focused list. Start with your Champion's ability and your Signature cards. Everything else in the deck should connect back to what they're trying to do.
Rumble is a good example. His kit generates Mecha-Minion tokens that swarm the board. A Rumble deck wants cheap units that fill out the board early, alongside spells that protect your wide presence.
In contrast, loading up on expensive single-target removal doesn't support what Rumble is trying to do, even if those removal cards are individually strong. It’s like taking Canadian currency down to the States with no exchange system in place. Useless!
Use the Three-Copy Limit Intentionally
Three copies per card name is the maximum. Running the full playset of your best cards makes draws more consistent, but filling every slot at three copies can make the deck one-dimensional.
Some strategies want a wider spread of unique card names for flexibility across different matchups. Others benefit from maxing out their core pieces and treating everything else as support.
Look at your copy distribution before you finalize a list. How many cards are you running the full three of, and how many sit at one or two? You might fold to a single counter strategy if everything is maxed out. On the other hand, your game plan shifts every time you shuffle up if everything is spread thin.
How many cards in a Riftbound deck stays fixed at 40 for the main deck. How you distribute those 40 slots across your card pool is where real deckbuilding lives.
Know Where to Find the Cards You Need
The question becomes where to source the cards once you know what the deck needs. Booster packs give you a randomized spread from a set, and you'll fill out your collection of commons and uncommons quite fast.
The specific rares and chase cards you need to finish a competitive build are harder to pull at random. That's where buying singles saves real time. You find the exact card, buy it individually, and skip the lottery altogether.
At the end of the day, you’ll find the best results come from a balanced approach. Most competitive players build from singles and use booster boxes for the fun of cracking packs and padding their binder.
It’s also worth keeping an eye on preorder windows if a new set is on the horizon. Prices on sealed product tend to climb once a set sells through its initial run. We make it easy to get an edge with our Riftbound preorders here at Danireon.
Start With a Riftbound Starter Deck
The Riftbound deck-building rules are simple, but it’s even simpler to just grab a preconstructed Champion Deck first if you're brand new to the game. They come with 56 cards ready to play out of the box, plus a playmat and a booster pack from the latest set.
We carry Riftbound starter decks from both Spiritforged and Unleashed. Rumble runs Mecha-Minion synergies and pushes wide boards. Fiora is all precision and stat manipulation. On the Unleashed side, Vi buffs units and swings hard while Vex wins through attrition and denial.
A few games with the preconstructed list will show you what clicks and what doesn't. From there, start picking up Riftbound singles to customize the build. Each Champion Deck also includes a rulebook that walks through every phase of a turn, which makes a real difference when you're learning with cards in hand.
Wrapping Up Our Riftbound Deck-Building Guide
We hope our overview of the Riftbound deck-building rules has left you feeling confident in getting started in this exciting TCG. How many cards in a Riftbound deck is the first question everybody asks, but what you do with those slots is the part that takes practice.
This Riftbound deck-building guide covered the rules and the strategy behind them. The fastest way to internalize any of it is to start playing. There’s no better teacher than action, after all!
So, what are you waiting for? Grab a Champion Deck to learn the mechanics, or start cracking a Riftbound booster box and building your own list. We carry every Riftbound set and we're here whenever you need a hand.
