Bestow 2WW (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.)
Eidolon of Countless Battles and enchanted creature each get +1/+1 for each creature you control and +1/+1 for each Aura you control.
NM-Mint - $1.80
Lightly Played - $1.70
Moderately Played - $1.60
Heavily Played - $1.50
Damaged - $1.20
NM-Mint Non English - $1.80
Lightly Played Non English - $1.70
Moderately Played Non English - $1.60
Heavily Played Non English - $1.50
Damaged Non English - $1.20