Can you use hidden cards at Battlefield1 to target units at Battlefield2?

Question

Accepted Answer

No, you cannot use a hidden card played from Battlefield 1 to target units at Battlefield 2.

According to **Rule 811.1.d.2** and **RiftJudge FAQ #5706**, when you play a card from Hidden, any targets chosen for that card (or for the play effect of a hidden permanent) must be chosen from among options at the **same battlefield** where the card was hidden.

While you are permitted to play a hidden card at Battlefield 1 even if a showdown is currently occurring at Battlefield 2 (**RiftJudge FAQ #10075**), the targeting restriction remains tied to the battlefield where the card was hidden.

**Summary of Restrictions:**
*   **Targeting:** Spells or play effects of hidden permanents must target units at the battlefield where they were hidden.
*   **Exceptions:** Cards like *Tideturner* (which explicitly states it interacts with other locations) are the only exceptions to this rule.
*   **Non-targeting effects:** If a card played from Hidden does not target anything (e.g., drawing cards), it can be played from Battlefield 1 without restriction, regardless of events at other battlefields.