Guilds of Ravnica

Electrostatic Field | Creature | Wall | Defender Whenever you cast an instant or sorcery spell, Electrostatic Field deals 1 damage to each opponent. | Dan Scott

Fire Urchin | Creature | Elemental | Trample Whenever you cast an instant or sorcery spell, Fire Urchin gets +1/+0 until end of turn. | Deruchenko Alexander

Goblin Cratermaker | Creature | Goblin Warrior | {1}, Sacrifice Goblin Cratermaker: Choose one — • Goblin Cratermaker deals 2 damage to target creature. • Destroy target colorless nonland permanent. | Svetlin Velinov

Goblin Locksmith | Creature | Goblin Rogue | Whenever Goblin Locksmith attacks, creatures with defender can't block this turn. | Mark Behm

Ornery Goblin | Creature | Goblin Warrior | Whenever Ornery Goblin blocks or becomes blocked by a creature, Ornery Goblin deals 1 damage to that creature. | Johann Bodin

Runaway Steam-Kin | Creature | Elemental | Whenever you cast a red spell, if Runaway Steam-Kin has fewer than three +1/+1 counters on it, put a +1/+1 counter on Runaway Steam-Kin. Remove three +1/+1 counters from Runaway Steam-Kin: Add {R}{R}{R}. | Jason Felix

Boros Challenger | Creature | Human Soldier | Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) {2}{R}{W}: Boros Challenger gets +1/+1 until end of turn. | Gabor Szikszai

Legion Guildmage | Creature | Human Wizard | {5}{R}, {T}: Legion Guildmage deals 3 damage to each opponent. {2}{W}, {T}: Tap another target creature. | Zack Stella

Swiftblade Vindicator | Creature | Human Soldier | Double strike, vigilance, trample | Viktor Titov

Fresh-Faced Recruit | Creature | Human Soldier | As long as it's your turn, Fresh-Faced Recruit has first strike. | Anthony Palumbo

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

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

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