Nymph of the Omen

Bestow {w}{u}{b}{r}{g} (If you cast this card for its
bestow cost, it's an Aura spell with enchant creature.
It becomes a creature again if it's not attached to a creature.)
Enchanted creature gets +1/+1 for each basic
land you control
Whenever an enchanted creature or enchantment creature you control attacks, search your library
for a basic land, reveal it, and put it into your
hand. Shuffle.