When does a 'when you play a card' trigger occur - when the card is put on the chain or after it resolves?

Ruling: In Riftbound, "played" means on resolve. When a card checks "when you play a card," it triggers immediately after the relevant card resolves.

Sequence:

• Cards are added to the chain
• The chain resolves one step at a time
• "When you play a card" triggers happen immediately after the relevant card resolves

Nuances:

• The only "on cast" style trigger currently in the game is on-target effects, which happen when the card finalizes on the chain (not on resolve)