What are signature cards?

Some cards in Riftbound: the League of Legends trading card game are made for one champion alone. These are the signature cards. A signature card is written around the plan of its champion, and it can only go in a deck led by that champion's Legend, so it is often the card a deck most wants to draw.

Every Legend revealed so far has come with at least one signature card, numbered right after it in its set. Loose Cannon, the Legend of Jinx, is number 251 of Origins, and the signature spell of Jinx, Super Mega Death Rocket!, is number 252.

How do you recognize a signature card?

A signature card has the word Signature on its type line, before the card type, so the line starts with Signature Spell, Signature Gear or Signature Unit. The Core Rules call Signature a supertype (rule 133.7.b), the same kind of word as Champion on a champion unit. The champion's name follows the type as a tag, which the rules call a champion tag. Super Mega Death Rocket! carries the tag Jinx.

A signature card also shares both domains of its Legend: Super Mega Death Rocket! is Fury and Chaos, just like Loose Cannon. Every signature card so far has two domains, and each Power symbol on such a card can be paid with Power of either domain, as the article on a card's Power cost explains.

Signature cards have nothing to do with signed cards, the collector printings that carry the artist's signature in foil, even though Riot calls those printings Signature Overnumbers. The article on the difference between signed cards and signature cards sorts the two out.

Which kinds of card can be signature cards?

The Core Rules allow the Signature supertype on any type of card (rule 133.7.b), and so far it has appeared on spells, gear and units. Spells are by far the most common. In Origins every Legend came with a signature spell, and most Legends since have done the same.

• Signature spells are played for their effect and then go to the trash, like any other spell. Super Mega Death Rocket! costs 4 Energy and deals 5 to a unit. When you conquer, you may discard a card to return it from your trash to your hand.
• Signature gear stays in play. Spinning Axe, the signature gear of Draven, is Equipment that attaches to one of your units as soon as you play it. The Ball, the signature gear of Orianna from Radiance, the fifth set, with its release on 23 October 2026, has Deploy, so it is played to a battlefield, and each time you play it or move it, you choose to draw a card or deal 2 to each enemy unit there.
• Signature units are the least common kind. Tibbers, the signature unit of Annie from Proving Grounds, has 7 Might and deals 3 to all units at battlefields when you play it, your own units included. Daisy!, the signature unit of Ivern from Unleashed, costs 1 Energy less for each of the tags Bird, Cat, Dog and Poro among your units.

A signature unit is not a champion unit, even though it carries a champion's name. Tibbers has the tag Annie, but it can never be the chosen champion of an Annie deck, because a chosen champion must be a champion unit (rule 103.3.a.2).

Which decks can play a signature card?

A deck may hold a signature card only when the card's champion tag matches the tag of the deck's Legend. Super Mega Death Rocket! goes in a deck led by Loose Cannon and in no other deck, not even another deck of Fury and Chaos. On top of that, the Core Rules allow at most three signature cards in a deck in all, whatever their names (rule 103.3.d). A Jinx deck can hold three copies of Super Mega Death Rocket! and no other signature card.

The limit of three matters most for the champions with more than one signature card.

• Master Yi has two Legends, Wuju Bladesman from Proving Grounds and Wuju Master from Unleashed, and two signature spells, Highlander and Alpha Strike. Both spells carry the tag Master Yi, so a deck led by either Legend may play either spell, as long as the copies of both come to three or fewer.
• Ornn has three signature gear from Spiritforged: Forgefire Cape, Rabadon's Deathcrown and Shurelya's Requiem. All three are Unique, so an Ornn deck holds at most one of each (rule 825.3.b).

Why do decks play their signature cards?

Signature cards are among the strongest cards a deck can play. Riot's deckbuilding primer calls the signature spell of each Origins Legend stronger than other cards of comparable cost, and it advises keeping room for three copies unless you have a good reason to play fewer.

The strength comes from how closely each card fits its champion. Alpha Strike lets a friendly unit deal damage equal to its Might, split among enemy units at battlefields, and gives you 1 XP for each unit it kills. XP is exactly what Wuju Master needs, since its abilities switch on at Level 6 and Level 11. In the same way, Green Father, the Legend of Ivern, can turn a battlefield it conquers or holds into a Brush, where Bird, Cat, Dog, Poro and Ivern units have +1 Might. Those are the same four animal tags that make Daisy! cheaper.

Do signature cards follow other rules in Sealed and Draft?

Yes. The Tournament Rules loosen them, because every player builds from the cards opened or picked at the event, as in Sealed and Draft. A Sealed or Draft deck may play any signature spell whose domains all fall within the deck's domains, even when the deck does not have that champion (rules 602.4.a.3.b and 602.4.b.4.b). A deck of Fury, Body and Order may play a signature spell that is Fury and Order, but not one that is Fury and Mind. The limit of three signature cards does not apply either (rules 602.4.a.6 and 602.4.b.7), so a player who opens four copies of one signature spell may play all four.

Where do you find signature cards?

Every signature card is an Epic, so it comes in booster packs. Riot's figures for Origins put an Epic at about one pack in four, and Origins holds 42 Epics, 12 of them signature cards, so one particular signature card turns up far less often than that. Three copies of one signature card take a lot of packs to find, so many players get them as single cards instead.

Single cards come from local game stores, from Cardmarket in Europe, from TCGplayer in the United States and from CardTrader on both sides of the Atlantic. Super Mega Death Rocket! sells for $2.64 today as a single card. The four decks of Proving Grounds each hold two copies of their champion's signature card, the Champion Decks of Spiritforged and Unleashed hold one, and the three Champion Decks of Origins hold none.

Every signature card in the game is on the signature cards page, with the champion it belongs to. Each champion's page, such as the page of Jinx, shows the Legend, the champion units and the signature cards together, and the deck builder checks the signature cards while you build. The article on how a champion's Legend, units and signature cards fit together shows how the cards of one champion share a plan, and tokens are the game pieces that other cards create, which never sit in a deck at all.