Queen of the Fairies

Echo {x}{w}{w} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.) X is equal to the number of fairies you control.
Other fairies you control gain "When this creature dies, return it to its owner's hand."
She appears to be but a child, but she is much greater and more powerful than the Great