Harness the Storm

Because you’re paying the spell’s costs, you can pay alternative costs, such as awaken costs and surge costs from the Battle for Zendikar block. You can also pay additional costs, such as kicker costs. If the card has a mandatory additional cost, like Lightning Axe, you must pay it to cast the card.

You must choose a target for Harness the Storm’s ability (if one exists) immediately after you’ve cast an instant or sorcery spell. There’s no way for that spell to be countered and then targeted by Harness the Storm once it’s in the graveyard.