Playing Cards

It depends on where it appears — "play" has three distinct functional meanings in Riftbound rules text.

In trigger conditions — "When you play," as seen on Ravenbloom Student and Darius, Trifarian — it means resolve. These abilities trigger once playing the card is complete, which happens at its resolution.^{[419.4][419.4.a]} For units and gear, that's the instant they're finalized, since both resolve immediately without priority being passed;^[337.1.c] for spells, resolution is a separate, later step, reached only after finalization and any reactions have played out.^[340.1]

In conditional statements checking whether a card has been played — "if you've played," as seen on Battering Ram and Crescent Guardian — it means finalize, not resolve. A pending item satisfies this the moment it's finalized.^[329.3] The Legion keyword makes this precise: it's written as "if you have played another card this turn,"^[812.1.b.1] but the dependent ability is active as long as that other card "has been Finalized on the same turn" — not resolved.^[812.1.c]

As an instruction — "play a card," as seen on Here to Help and Fizz, Trickster — it means place the card on the chain and queue it for finalization.^[419.1] This is the general, baseline meaning: the limited action of putting a card on the chain, nothing more.