Grand Moff Tarkin

When Grand Moff Tarkin enters, each player secretly chooses a permanent he or she owns other than a basic land and may reveal its identity at any time. Whenever a permanent chosen this way is revealed, that player cannot attack you while Grand Moff Tarkin is on the battlefield. Whenever a permanent chosen this way is exiled or destroyed, its owner reveals its identity and loses the game.

"I grow tired of asking this. So it will be the last time. Where is the rebel base?"