Mutually Assured Destruction

Choose one -
• Mutually Assured Destruction deals 4 damage
to each creature.
• Mutually Assured Destruction deals 4 damage
to each player and planeswalker.
Sidekick (As an additional cost to casting this
spell, you may discard a card. If you do, create a
copy of this spell. You may choose new targets
and modes for the copy.)