Milling three is useful, but at three mana it's just not enough to include if we aren't benefitting much from that cost reduction effect
When you have some stuff but are not in a position to win with a mass sacrifice
This two-drop 0/1 flying Bird Pirate cannot block, and then when you deal combat damage to a foe with a Pirate, you explore here once for all of the damage dealt, and then that's just once per combat step unless you have one with double strike or at least two dorks one with first strike and one without
Is There a Sliver Planeswalker
Between these two decks, and the accessories I've touched on above, Shimmering Skies is really a fun, celebratory entry in this game that hasn't yet missed its mark at all
You can use it to trade some life for card advantage while throwing it out of any annoying creatures coming your way