Lynette, Circus Sweetheart

Lynette cannot be sacrificed more than once each
turn.
whenever Lynette is put into a graveyard from anywhere, exile it, then return it to the battlefield
tapped and under your control at the beginning of
the next noncombat phase.
Whenever Lynette enters the battlefield, surveil X,
where X is the number of creatures that have died
this turn. then you may put a permanent card that
was put into your graveyard this turn onto the battlefield tapped.