Guilds of Ravnica

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

Beamsplitter Mage | Creature | Vedalken Wizard | Whenever you cast an instant or sorcery spell that targets only Beamsplitter Mage, if you control one or more other creatures that spell could target, choose one of those creatures. Copy that spell. The copy targets the chosen creature. | Svetlin Velinov

Crackling Drake | Creature | Drake | Flying Crackling Drake's power is equal to the total number of instant and sorcery cards you own in exile and in your graveyard. When Crackling Drake enters the battlefield, draw a card. | Victor Adame Minguez

Firemind's Research | Enchantment | | Whenever you cast an instant or sorcery spell, put a charge counter on Firemind's Research. {1}{U}, Remove two charge counters from Firemind's Research: Draw a card. {1}{R}, Remove five charge counters from Firemind's Research: It deals 5 damage to any target. | Grzegorz Rutkowski

Goblin Electromancer | Creature | Goblin Wizard | Instant and sorcery spells you cast cost {1} less to cast. | Svetlin Velinov

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

League Guildmage | Creature | Human Wizard | {3}{U}, {T}: Draw a card. {X}{R}, {T}: Copy target instant or sorcery spell you control with mana value X. You may choose new targets for the copy. | Svetlin Velinov

Niv-Mizzet, Parun | Legendary Creature | Dragon Wizard | This spell can't be countered. Flying Whenever you draw a card, Niv-Mizzet, Parun deals 1 damage to any target. Whenever a player casts an instant or sorcery spell, you draw a card. | Svetlin Velinov

Ral, Izzet Viceroy | Legendary Planeswalker | Ral | +1: Look at the top two cards of your library. Put one of them into your hand and the other into your graveyard. −3: Ral, Izzet Viceroy deals damage to target creature equal to the total number of instant and sorcery cards you own in exile and in your graveyard. −8: You get an emblem with "Whenever you cast an instant or sorcery spell, this emblem deals 4 damage to any target and you draw two cards." | Kieran Yanner

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

Thousand-Year Storm | Enchantment | | Whenever you cast an instant or sorcery spell, copy it for each other instant and sorcery spell you've cast before it this turn. You may choose new targets for the copies. | Dimitar Marinski

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

Piston-Fist Cyclops | Creature | Cyclops | Defender As long as you've cast an instant or sorcery spell this turn, Piston-Fist Cyclops can attack as though it didn't have defender. | Wayne Reynolds

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

Chamber Sentry | Artifact Creature | Construct | Chamber Sentry enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it. {X}, {T}, Remove X +1/+1 counters from Chamber Sentry: It deals X damage to any target. {W}{U}{B}{R}{G}: Return Chamber Sentry from your graveyard to your hand. | Adam Paquette

Izzet Locket | Artifact | | {T}: Add {U} or {R}. {U/R}{U/R}{U/R}{U/R}, {T}, Sacrifice Izzet Locket: Draw two cards. | Dmitry Burmak

Izzet Guildgate | Land | Gate | Izzet Guildgate enters the battlefield tapped. {T}: Add {U} or {R}. | Kirsten Zirngibl

Izzet Guildgate | Land | Gate | Izzet Guildgate enters the battlefield tapped. {T}: Add {U} or {R}. | Kirsten Zirngibl

Steam Vents | Land | Island Mountain | ({T}: Add {U} or {R}.) As Steam Vents enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped. | Jonas De Ro