Riftbound Ambush: what it does
GlossaryAmbush is a Riftbound keyword on units that lets them be played to a battlefield where you already control other units — a location that would otherwise be off-limits, since units can normally only be played to your base or a battlefield you already control by other means. While being played that way, an Ambush unit also gains Reaction, so it can drop into a fight already in progress.
What Ambush adds to a unit's options
Ordinarily a unit can only be played to your base, or to a battlefield you already have presence at. Ambush is a passive ability that widens that list: it adds "a battlefield where you control units" as a valid destination, purely as an extra option layered on top of the normal rules — it never removes a choice you already had. If the battlefield you were relying on stops having your units at it before the play finishes resolving, Ambush's permission for that location disappears with it.
Why Ambush reads as a combat trick
Because an Ambush unit gains Reaction for the play, it can show up at an already-active battlefield at the same instant-speed timing a Reaction card would — reinforcing a fight mid-combat rather than only setting up ahead of time. Paired with Hidden, it's one of the core tools for a deck built around surprise plays; see the Timing Keywords guide for how they work together.
Soulspinner is a real, officially revealed Vendetta card printed with Ambush — open it to see the exact printed rules text and its live price across stores.
Every Ambush card
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Ambush FAQ
What does Ambush do in Riftbound?
Ambush lets a unit be played to a battlefield where you already control units — normally off-limits — and grants it Reaction for that play, so it can join a fight already underway.
Can Ambush be used to play a unit to an empty battlefield?
No — the permission specifically requires a battlefield where you already control one or more units. An empty battlefield isn't a valid Ambush destination on its own.
Does Ambush replace the normal rules for playing a unit?
No, it adds to them. A unit with Ambush can still be played to your base or anywhere else it normally could; Ambush is an extra option, not a replacement.