If I have a sprite in a battlefield with a hidden Sprite Call, how would that resolve? Can I react with Sprite Call to my sprite's death and keep a new sprite on the battlefield?

Question

Accepted Answer

Yes, you can react to your Sprite's *Temporary* trigger by playing *Sprite Call* from its hidden state, and the new Sprite will survive the current turn.

### The Interaction
*Temporary* is a triggered ability (Rule 742.1). When the *Temporary* effect triggers at the start of your Beginning Phase, it is placed on the chain as a pending item. Because it is on the chain, you are permitted to play *Reaction* speed effects in response to it.

When you play your hidden *Sprite Call* in response to the *Temporary* trigger, it is added to the top of the chain. Because the chain resolves in a Last-In, First-Out (LIFO) order (Rule 336.1), your *Sprite Call* resolves first.

### Sequence of Events
1.  **Beginning Phase:** The *Temporary* ability of your existing Sprite triggers and is placed on the chain.
2.  **Reaction:** You play your hidden *Sprite Call* in response. It is placed on top of the chain.
3.  **Resolution (LIFO):**
    *   The *Sprite Call* resolves first, summoning a new Sprite to the battlefield.
    *   The original *Temporary* trigger then resolves, killing the original Sprite.
4.  **Result:** The new Sprite enters the battlefield *after* the *Temporary* trigger window for that phase has already passed. Therefore, it will not be checked for *Temporary* until the start of your next turn.

### Important Clarifications
*   **LIFO Resolution:** The rule governing the resolution of the chain is **Rule 336.1**, which states: "The newest item on the Chain resolves." This is the standard mechanic for LIFO resolution in Riftbound.
*   **Temporary Keyword:** While the *Temporary* keyword is defined as "Kill this at the start of... Beginning Phase" (Rule 742.1.b), the FAQ confirms that this trigger creates a chain that players can respond to (FAQ #6422, #2751).
*   **Hidden Restrictions:** Per **Rule 737.1.d.3**, when you play a hidden spell that causes you to play a unit, you must play that unit at the same battlefield where the spell was hidden. You cannot choose a different battlefield or your base.