Chronoshatter

Split Second** (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)
Choose one; if you control a Legendary Creature, you may choose both instead:
-Time's Undoing: Exile all nonland permanents. Each player’s graveyard, hand, and library become a single card library. Each player draws one card.
- Reality's Reshape: Exile all opponents' hands and graveyards, then for each card exiled this way, you may put a permanent card from your hand or