Jace Reawakened

If an instant or a card with flash is plotted this way, you can still cast it only when you have priority during your main phase while the stack is empty.

Exiling a card using its plot ability is a special action. Once you announce you're taking that action, no other player can respond by trying to remove that card from your hand.

You can't choose to pay any additional costs for the copy. However, effects based on any additional costs that were paid for the original spell are copied as though those same costs were paid for the copy too.

If a plotted card has {X} in its mana cost, you must choose 0 as the value of X when casting it without paying its mana cost.

The copy made by Jace Reawakened's last ability is created on the stack, so it's not "cast."

The copy created by Jace Reawakened's last ability will have the same targets as the spell it's copying unless you choose new ones. You may change any number of the targets, including all of them or none of them. The new targets must be legal.