Riftbound Temporary: what it does
GlossaryTemporary is a Riftbound triggered-ability keyword on permanents, short for "at the start of this permanent's controller's Beginning Phase, before scoring, kill this." A Temporary permanent is built to last exactly one round — it's automatically killed at the very start of its controller's next Beginning Phase, before points are even scored that turn.
When a Temporary permanent actually dies
The trigger is its controller's Beginning Phase starting — specifically before scoring happens that phase — so a Temporary permanent gets the rest of the turn it entered on, plus reaches the very start of the next one, before it's removed. Multiple instances of Temporary on the same card are redundant; regardless of how many copies of the ability are stacked, the permanent is only killed once.
Why cards use Temporary
Temporary is how Riftbound prints an effect that's meant to matter for a single turn cycle and then clean itself up automatically — a token, a short-lived buff-carrier, anything the game doesn't want lingering. See the Game Actions guide for how it compares to other self-limiting effects like Repeat and Stun.
Momentary Companion is a real, officially revealed Radiance card printed with Temporary — open it to see the exact printed rules text and its live price across stores.
Every Temporary card
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What does Temporary mean in Riftbound?
Temporary is short for "at the start of this permanent's controller's Beginning Phase, before scoring, kill this" — the permanent is automatically removed at the very start of the following round.
Does a Temporary permanent die immediately?
No — it survives the rest of the turn it entered on and into the start of the following turn, where it's then killed before scoring.
What if a card has multiple instances of Temporary?
They're redundant — the permanent is still only killed once, regardless of how many copies of the ability it carries.