Eidolon of Countless Battles{1}{W}{W}

Enchantment Creature — Spirit

Bestow {2}{W}{W} (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.) This creature and enchanted creature each get +1/+1 for each creature you control and +1/+1 for each Aura you control.