Princess Serenity

Princess Serenity is all colors.
You can only cast Princess Serenity if you control
five or more Sailors with different names.
When Princess Serenity enters the battlefield,
exile all Sailor creatures from your graveyard and battlefield, then return them to the battlefield
tapped. Then, search your library for a card
named "The Legendary Silver Crystal" and put
it into your hand.
Whenever a Sailor enters the battlefield, draw a
card.