Zerta, Last Breath

Flying, haste, shroud
Zerta, Last Breath can only be cast once from
outside the game and once the condition is met.
• {u}{b}{r}{g}: Exile any number of creatures you
control. At the beginning of your end step,
return those creatures to the battlefield
under your control.
• When Zerta, Last Breath leaves the battlefield
exile all nondragon, nonland permanents.