Hamlet Coven Sister

At the beginning of your upkeep, each opponent
mills one card. You may look at the top card of
your library. If it's a noncreature, nonland card
with converted mana cost three or less, you may
cast it without paying it's mana cost.
Tap three untapped Hamlet Coven Sister's you
control: Search your graveyard, hand, and/or
library for Hamlet Coven Mistress, put it onto
the battlefield. If you searched your library this
way, shuffle it.