Enchanting Enchantress

Bestow {5}{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 to a creature.)
Creatures can't attack you or a planeswalker you control unless their controller pays {x} for each of those creatures, where X is the number of enchantments you control.
Enchanted creature gets +3/+3.