Glados, the aether ghost

Whenever a turret enters the battlefield under
your control, It gets +2/+1 until end of turn.
Whenever a turret leaves the battlefield and was
under your control Glados gets +X/+X where X
was the turrets power until end of turn. If Glados
were to be the target of a spell or ability chose
another turret you control to be the target of that
spell or ability. If there is a card in your library
called Turret printing facility search your library
for it and put it on the battlefield tapped.