Riftbound Hidden Rules: How to Hide, Flip and Target Cards

New to the game? Our Riftbound how-to-play guide explains Energy, Power and the turn structure first.

Riftbound Hidden Rules: hiding is not playing

The Core Rules say it flatly in rule 811.1.c.1: "Hide is not a subset of Play." In practice that means:

• Hiding opens no chain. Your opponent gets no window to respond to the hide itself. All they learn is that a facedown card now sits at that battlefield.
• "When you play" waits for the flip. Playing a card from facedown does open a chain, and that's the moment play triggers fire.

Evelynn's Legend is where new players trip. Agony's Embrace reads "Once each turn, when you play a card from face down, draw 1. Then, if it's not your turn, discard 1." A player on r/riftboundtcg asked about it and then described how he'd been running it: "I was playing a face down card on my conquered battlefield and hiding a face down card, drawing one. Then when I passed my turn, I discarded one from my hand". The thread set him straight. The draw comes from the flip, and as u/Pamplemoussez put it, "You do not trigger it when you initial hide the card." The discard only happens when you flip on your opponent's turn. Our Evelynn vs Seraphine Showdown deck comparison covers the deck that leans on this hardest.

How to hide a card, step by step

1. Check the timing. You hide on your own turn, during an Open State, which means no chain is waiting to resolve. So not in response to anything, and not on your opponent's turn.

2. Pick the card. It needs the Hidden keyword and has to be in your hand or your Champion Zone, so a Chosen Champion with Hidden can be hidden straight from there.

3. Pick a battlefield you control. Each battlefield has one facedown slot, and it has to be empty. Your base doesn't count: the rules define hiding as placing a card "facedown at a Battlefield you control."

4. Pay the cost. One Power of any Domain. That's the rainbow rune in every Hidden card's reminder text, and the 0 after it is what you pay later to flip. Two cards bend this. The Legend Swift Scout lets you pay 1 Energy instead, and Guerilla Warfare lets you hide cards ignoring costs for a turn.

5. Leave it facedown. The slot is public but the card is private, so your opponent knows something is there, not what.

6. Flip it from the next turn on. The keyword says "Beginning on the next turn, this gains [Reaction] and you may play this, ignoring its base cost." Reaction means any time a Reaction card could be played, which covers your opponent's turn. It doesn't cover the turn you hid it.

You never have to hide a Hidden card. Rule 811.3 lets you play it from hand for its normal cost, at its normal timing, with no targeting limits. Some cards pay you for that. UNL-042UNL-042Shop on TCGplayer Back Off stuns a unit either way, but it only draws "If you played this from your hand".

Hidden targeting rules: the battlefield lock

What you pay for a free card at Reaction speed is flexibility about where it lands. Rule 811.1.d ties a card played from facedown to the battlefield where it was hidden:

• Units and gear are played to that battlefield. That includes gear, which normally can only go to your base. Unattached gear at a battlefield then gets recalled to base at the next Cleanup, so OGN-077OGN-077Shop on TCGplayer Zhonya's Hourglass ends up home anyway.
• Spells pick targets at that battlefield. OGN-213OGN-213Shop on TCGplayer Hidden Blade reads "Kill a unit at a battlefield. Its controller draws 2." From facedown, that unit has to be at the Blade's battlefield. When a player asked whether a hidden card could hit another battlefield, the top answer from u/Ceddidulli was short: "Yes but you can only target units on the battlefield of the hidden card."
• No legal target there, no flip. A spell can't be played from facedown at all if it has no valid target under these limits.
• A unit's play effect targets where the unit lands. Blastcone Fae's -2 Might has to hit a unit at the battlefield it was played to.
• Cards that can't obey the lock ignore it. In the current wording the rules quote (printed copies just say "a friendly unit"), OGN-199OGN-199Shop on TCGplayer Tideturner swaps with a unit you control "at another location", which can never be at its own battlefield, so it chooses freely. Smoke and Mirrors splits the difference: the first unit must be at its battlefield, and the second, which has to be "at a different location", can be anywhere.
• Anything that doesn't choose a target works normally. Stand United's second half, "Buffs give an additional +1 might to friendly units this turn", reaches every buffed unit you have, wherever it is.

Image credit: Riot Games, official Riftbound card gallery (OGN-097, OGN-199, UNL-083, SFD-043).

Games Deconstructed titled its video on the keyword "Riftbound's Best Designed, Worst Explained Mechanic", which is about right:

Edge cases players ask about

You lose the battlefield. The facedown card is removed during the next Cleanup and goes to your trash. It's revealed on the way out, since a facedown card that changes zones is shown to everyone. If you can't hold a battlefield through your opponent's turn, a card hidden there is a Power spent on a discard, unless you flip it during their attack.

Two hidden cards at one battlefield. Only with something that raises the limit. The Bandle Tree battlefield reads "You may hide an additional card here." Radiance adds Bushwhack Trap, a gear you deploy to a battlefield: while you control it, you may hide a second card there.

Your facedown card doesn't "have Hidden". Since the October 16 rules update, rule 811.5.a ends: "A facedown card is not a card with Hidden." That's why Gutter Guardian can't show off one of your facedown cards. Riot's patch notes answer the question directly: "You cannot. Facedown cards don't have any referenceable characteristics from their front side."

The opponent shuts it off. Noxus Saboteur reads "Your opponents' [Hidden] cards can't be revealed here." A card you hid where the Saboteur stands can't be flipped while it's there.

Image credit: Riot Games, official Riftbound card gallery (RAD-103, RAD-108, OGN-018, OGN-278).

What changed in the October 16 rules

Riot's October 9 Core Rules, in effect from October 16, rewrote three parts of rule 811. We compared them line by line with the July 16 version:

The last one matters for Evelynn players. Last Caress lets your next unit be played to any battlefield, even from face down. The new example in the rules says that unit's play effect then targets where it landed, "not the one it was played from."

Every Riftbound Hidden card so far

Riot's card gallery listed 43 cards printed with Hidden on October 22: 24 spells, 17 units and 2 gear. One of them, Fight or Flight, is banned in Standard.

Our take

Hide the cards whose value is surprise. Removal like Hidden Blade belongs at the battlefield you're defending, and SFD-154SFD-154Shop on TCGplayer Guards! is at its best when a Sand Soldier shows up after your opponent has committed, the way our Azir deck guide plays it. Play the rest from hand when the battlefield lock costs more than the free flip saves you, and Back Off is the clearest case. And don't hide at a battlefield you can't hold. A facedown card there is a Power you've paid to put a card in your trash.

How we checked this: on October 22, 2026 we read rule 811 and the facedown-zone rules in Riot's October 9 Core Rules, compared them with the July 16 version, read the Radiance patch notes Q&A, and counted every card printed with Hidden in Riot's card gallery data. Player quotes are from r/riftboundtcg.