Can a card played from hidden at one battlefield target units or place tokens at a different battlefield?

Ruling: No. A card played from hidden at one battlefield must target units and place tokens only at that same battlefield, regardless of where the showdown occurs.

Sequence:

• If a card is hidden at battlefield A, it must be played at battlefield A
• Any targets, token placements, or units played must be at battlefield A
• This restriction applies even if the showdown is happening at battlefield B

Nuances:

• If you play a card from hand (not from hidden), it can target units at any battlefield
• A card cannot be played from hidden if it has no valid targets at that battlefield under these restrictions