General Tarkin

Stormtroopers your control gets +1/+1.
When this creature enters battlefield you
may search your library for Death Star.
At the beginning of your upkeep create 1/1 Stormtrooper creature token, activate this
ability only if you control Death Star.
When Death Star leaves the battlefield, destroy General Tarkin, and all tokens your control.
General Tarkings power and toughness are equal
to number of Stormtroopers under your control.