Explosive Derailment

No player can cast spells or activate abilities in between the modes of a resolving spell. Any abilities that trigger won’t be put onto the stack until the spell is done resolving.

Spells with spree have a + (plus sign) indicator in the upper right corner of the card frame. This has no rules meaning and serves only to remind players that at least one additional cost is required to cast the spell.

If an effect allows you to cast a spell with spree “without paying its mana cost,” you must still choose at least one mode and pay the associated additional costs.

If all targets for the chosen modes become illegal before a spell with spree resolves, the spell won’t resolve and none of its effects will happen. If at least one target is still legal, the spell will resolve but will have no effect on any illegal targets.

If a spell with spree is copied, the effect that creates the copy may allow you to choose new targets. You cannot choose new modes.

You choose the modes as you cast the spell with spree. Once modes are chosen, they can’t be changed.

You can’t choose the same mode more than once.

Each additional cost and associated mode in the text box is also preceded with a + indicator. These symbols also have no rules meaning and serve only to remind players that the listed costs are additional costs.