Time Reversal

Each player choose half his permanents in play rounded down, then shuffle the rest in his library. Repeat the process for the cards in each players
hand, graveyard and exile zone.
The Izzet Chronoriders Faction was permorfing
an astounding quantity of temporal incursions in Ravnica, a large part prepared for the simple objective of confounding Azorius Precognitive
Agents.