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.
Near Mint - £0.80
Lightly Played - £0.70
Moderately Played - £0.50
Heavily Played - £0.40
Damaged - £0.30
Near Mint Non English - £0.80
Lightly Played Non English - £0.70
Moderately Played Non English - £0.50
Heavily Played Non English - £0.40
Damaged Non English - £0.30