Guilds of Ravnica

Smelt-Ward Minotaur | Creature | Minotaur Warrior | Whenever you cast an instant or sorcery spell, target creature an opponent controls can't block this turn. | Wisnu Tan

Beacon Bolt | Sorcery | | Beacon Bolt deals damage to target creature equal to the total number of instant and sorcery cards you own in exile and in your graveyard. Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.) | Titus Lunter

Wee Dragonauts | Creature | Faerie Wizard | Flying Whenever you cast an instant or sorcery spell, Wee Dragonauts gets +2/+0 until end of turn. | Greg Staples