Molten Exhale

Behold buys back a timing restriction, and this is one of the cleaner illustrations of what that trade costs. Four damage to a creature or planeswalker at two mana is a strong rate for a sorcery, and the card adds instant speed on top of it, but only if you can show a Dragon: either one already on the battlefield or a card in your hand you reveal. That conditional flash is the whole design lever. Red already owns instant-speed burn, so this is not about granting red an ability it lacks; it is about pricing a sorcery-rate spell and then selling the instant-speed mode back to you at the cost of committing to Dragons in your deck. The entry fee is almost never paid in mana or cards: a Dragon you control satisfies it for free, and even from an empty board a Dragon in hand does the job by revealing rather than discarding. What the fee actually gates is deckbuilding direction. It steers you toward a build that fields Dragons rather than a removal spell you can splash anywhere. Cast it dry with no Dragon to show and it is a serviceable sorcery-speed burn spell; cast it with a Dragon behind you and it waits for an attacker to overcommit or a planeswalker to tick up, then answers at end of turn.