As long as your devotion to green is less than five, Nylea isn't a creature.
Creature spell you cast cost 1 less to cast.
2G: Reveal the top card of your library. If it's a creature card, put it into your hand. Otherwise, you may put it into your graveyard.
NM-Mint - £2.90
NM-Mint Non English - £2.90
Lightly Played - £2.80
Lightly Played Non English - £2.80
Moderately Played - £2.50
Moderately Played Non English - £2.50
Heavily Played - £2.20
Heavily Played Non English - £2.20
Damaged - £1.80
Damaged Non English - £1.80
NM-Mint Foil - £6.30
NM-Mint Foil Non English - £6.30
Lightly Played Foil - £6.00
Lightly Played Foil Non English - £6.00
Moderately Played Foil - £5.40
Moderately Played Foil Non English - £5.40
Heavily Played Foil - £4.70
Heavily Played Foil Non English - £4.70
Damaged Foil - £3.80
Damaged Foil Non English - £3.80