As an additional cost to cast Natural Order, sacrifice a green creature.
Search your library for a green creature card and put it onto the battlefield. Then shuffle your library.
...but the price of Mangaras's freedom was Asmira's life.
NM-Mint Foil - $77.10
NM-Mint Foil Non English - $77.10
Lightly Played Foil - $73.20
Lightly Played Foil Non English - $73.20
Moderately Played Foil - $69.40
Moderately Played Foil Non English - $69.40
Heavily Played Foil - $61.70
Heavily Played Foil Non English - $61.70
Damaged Foil - $50.10
Damaged Foil Non English - $50.10