Perfect Balance

As this permanent transforms into Perfect
Balance, snap your fingers and randomly exile
half of all creatures and planeswalkers in play,
rounded up. They remain in exile for as long as
Perfect Balance is in play. If Perfect Balance
would leave play, instead return all Infinity
Stones to the battlefield tapped, and return
Perfect Balance to the battlefield transformed.
". . . but this does put a smile on my face." -Thanos