Guilds of Ravnica

Hypothesizzle | Instant | | Draw two cards. Then you may discard a nonland card. When you do, Hypothesizzle deals 4 damage to target creature. | Chris Seaman

Ionize | Instant | | Counter target spell. Ionize deals 2 damage to that spell's controller. | Chase Stone

Sonic Assault | Instant | | Tap target creature. Sonic Assault deals 2 damage to that creature's controller. 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.) | Tyler Walpole

Expansion | Instant | | Copy target instant or sorcery spell with mana value 4 or less. You may choose new targets for the copy. | Deruchenko Alexander

Invert // Invent | Instant // Instant | | Switch the power and toughness of each of up to two target creatures until end of turn. // Search your library for an instant card and/or a sorcery card, reveal them, put them into your hand, then shuffle. | Mathias Kollros