
Pursuit of Flight | Enchantment | Aura | Enchant creature
Enchanted creature gets +2/+2 and has "{U}: This creature gains flying until end of turn." | Christopher Moeller

Chemister's Trick | Instant | | Target creature you don't control gets -2/-0 until end of turn and attacks this turn if able.
Overload {3}{U}{R} (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.") | Christopher Moeller

Essence Backlash | Instant | | Counter target creature spell. Essence Backlash deals damage equal to that spell's power to its controller. | Jung Park

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

Frostburn Weird | Creature | Weird | {U/R}: Frostburn Weird gets +1/-1 until end of turn. | Mike Bierek

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