David, Deck Prototyper

Flash
When David, Deck Prototyper enters the
battlefield, each player chooses up to X permanents
they own, then shuffles the rest into their library,
then reveals that many cards from the top of their
library. They put all non-Aura permanent cards
revealed this way into play, then do the same for Aura
cards, then put the rest on the bottom of their library
in any order. Then each player creates X Treasure tokens.