Gatecrash

Aerial Maneuver | Instant | | Target creature gets +1/+1 and gains flying and first strike until end of turn. | Scott Chou

Shielded Passage | Instant | | Prevent all damage that would be dealt to target creature this turn. | Raymond Swanland

Smite | Instant | | Destroy target blocked creature. | Zoltan Boros

Aetherize | Instant | | Return all attacking creatures to their owner's hand. | Ryan Barger

1.5 LSV

Gridlock | Instant | | Tap X target nonland permanents. | Yeong-Hao Han

Rapid Hybridization | Instant | | Destroy target creature. It can't be regenerated. That creature's controller creates a 3/3 green Frog Lizard creature token. | Jack Wang

LSV

Scatter Arc | Instant | | Counter target noncreature spell. Draw a card. | Peter Mohrbacher

Spell Rupture | Instant | | Counter target spell unless its controller pays {X}, where X is the greatest power among creatures you control. | Kev Walker

Totally Lost | Instant | | Put target nonland permanent on top of its owner's library. | David Palumbo

Devour Flesh | Instant | | Target player sacrifices a creature, then gains life equal to that creature's toughness. | Kev Walker

2 LSV

Grisly Spectacle | Instant | | Destroy target nonartifact creature. Its controller mills cards equal to that creature's power. | Zoltan Boros

Killing Glare | Instant | | Destroy target creature with power X or less. | Peter Mohrbacher

Furious Resistance | Instant | | Target blocking creature gets +3/+0 and gains first strike until end of turn. | Slawomir Maniak

Homing Lightning | Instant | | Homing Lightning deals 4 damage to target creature and each other creature with the same name as that creature. | Slawomir Maniak

Massive Raid | Instant | | Massive Raid deals damage to any target equal to the number of creatures you control. | Zoltan Boros

Skullcrack | Instant | | Players can't gain life this turn. Damage can't be prevented this turn. Skullcrack deals 3 damage to target player or planeswalker. | Dave Kendall

Burst of Strength | Instant | | Put a +1/+1 counter on target creature and untap it. | Marco Nelor

Hindervines | Instant | | Prevent all combat damage that would be dealt this turn by creatures with no +1/+1 counters on them. | Svetlin Velinov

Naturalize | Instant | | Destroy target artifact or enchantment. | Daniel Ljunggren

Predator's Rapport | Instant | | Choose target creature you control. You gain life equal to that creature's power plus its toughness. | Matt Stewart

Tower Defense | Instant | | Creatures you control get +0/+5 and gain reach until end of turn. | Seb McKinnon

Wildwood Rebirth | Instant | | Return target creature card from your graveyard to your hand. | Dan Scott

Executioner's Swing | Instant | | Target creature that dealt damage this turn gets -5/-5 until end of turn. | Karl Kopinski

Orzhov Charm | Instant | | Choose one — • Return target creature you control and all Auras you control attached to it to their owner's hand. • Destroy target creature and you lose life equal to its toughness. • Return target creature card with mana value 1 or less from your graveyard to the battlefield. | Zoltan Boros

Beckon Apparition | Instant | | Exile target card from a graveyard. Create a 1/1 white and black Spirit creature token with flying. | Cliff Childs

Aurelia's Fury | Instant | | Aurelia's Fury deals X damage divided as you choose among any number of targets. Tap each creature dealt damage this way. Players dealt damage this way can't cast noncreature spells this turn. | Tyler Jacobson

4 LSV

Boros Charm | Instant | | Choose one — • Boros Charm deals 4 damage to target player or planeswalker. • Permanents you control gain indestructible until end of turn. • Target creature gains double strike until end of turn. | Zoltan Boros

Martial Glory | Instant | | Target creature gets +3/+0 until end of turn. Target creature gets +0/+3 until end of turn. | Raymond Swanland

2 LSV

Arrows of Justice | Instant | | Arrows of Justice deals 4 damage to target attacking or blocking creature. | James Ryman

Shattering Blow | Instant | | Exile target artifact. | Steve Prescott

Dimir Charm | Instant | | Choose one — • Counter target sorcery spell. • Destroy target creature with power 2 or less. • Look at the top three cards of target player's library. Put one back and the rest into that player's graveyard. | Zoltan Boros

Psychic Strike | Instant | | Counter target spell. Its controller mills two cards. | Mathias Kollros

Hydroform | Instant | | Target land becomes a 3/3 Elemental creature with flying until end of turn. It's still a land. | Howard Lyon

Mystic Genesis | Instant | | Counter target spell. Create an X/X green Ooze creature token, where X is that spell's mana value. | Mike Bierek

Simic Charm | Instant | | Choose one — • Target creature gets +3/+3 until end of turn. • Permanents you control gain hexproof until end of turn. • Return target creature to its owner's hand. | Zoltan Boros

Biomass Mutation | Instant | | Creatures you control have base power and toughness X/X until end of turn. | Dan Scott

Bioshift | Instant | | Move any number of +1/+1 counters from target creature onto another target creature with the same controller. | Scott Chou

Gruul Charm | Instant | | Choose one — • Creatures without flying can't block this turn. • Gain control of all permanents you own. • Gruul Charm deals 3 damage to each creature with flying. | Zoltan Boros

Signal the Clans | Instant | | Search your library for three creature cards and reveal them. If you reveal three cards with different names, choose one of them at random and put that card into your hand. Shuffle the rest into your library. | Dave Kendall

Pit Fight | Instant | | Target creature you control fights another target creature. (Each deals damage equal to its power to the other.) | Matt Stewart