If I have a hidden Zhonya in a battlefront with only one unit, and I want to move that unit via ganking on a later turn, can I reveal and play the Zhonya to move it to my base before moving the unit, or does the Zhonya get trashed when the unit leaves?

Ruling: You can reveal and play the hidden Zhonya during your action phase before moving the unit. If you move the unit without playing the Zhonya first, then the Zhonya will get trashed.

Sequence:

• During your action phase, reveal and play the hidden Zhonya
• Then move the unit via ganking

Nuances:

• The Zhonya must be played before the unit is moved, otherwise it gets trashed when the battlefront becomes empty