For 'Get Excited!', is the discard a cost, and what happens when you target something and it gets removed before the spell resolves?

Ruling: The discard is not a cost—it happens during resolution. You declare the target when casting, give opponents a chance to react, then discard and deal damage during resolution. You must always discard a card when Get Excited resolves, even if the target is no longer valid.

Sequence:

• Declare what is being targeted
• Give the opponent a chance to react
• Resolve the spell by discarding a card and dealing damage

Nuances:

• You do not have to announce what you are discarding until the spell is resolving
• If the target becomes invalid (removed by a reaction), you still must discard a card
• You can choose to discard something different than originally planned when resolving
• Nothing fizzles in Riftbound; effects resolve doing as much as they can (target becomes NULL but other effects still happen)