If Annie is on a battlefield with a hidden Tideturner, and the opponent uses Charm to move Annie back to the battlefield, can the player react with Tideturner to move Annie to base? Do both Tideturner and Annie go back to base?

Ruling: Annie cannot be targeted with Tideturner as a reaction in this situation because Annie is still currently at the battlefield where Tideturner is located. Annie would end up in base from the Charm effect, and if you reacted with Tideturner, it would remain at the battlefield.

Sequence:

• Opponent plays Charm targeting Annie
• Annie is still at the battlefield during the reaction window
• Tideturner cannot target Annie because they are at the same location
• Charm resolves, moving Annie to base
• Tideturner remains at the battlefield