Brave the Elements | Instant | | Choose a color. White creatures you control gain protection from the chosen color until end of turn. | Goran Josic
Celestial Flare | Instant | | Target player sacrifices an attacking or blocking creature. | Clint Cearley
Congregate | Instant | | Target player gains 2 life for each creature on the battlefield. | Mark Zug
Fortify | Instant | | Choose one —
• Creatures you control get +2/+0 until end of turn.
• Creatures you control get +0/+2 until end of turn. | Christopher Moeller
Pay No Heed | Instant | | Prevent all damage a source of your choice would deal this turn. | Adam Rex
Show of Valor | Instant | | Target creature gets +2/+4 until end of turn. | Anthony Palumbo
Silence | Instant | | Your opponents can't cast spells this turn. | Wayne Reynolds
Cancel | Instant | | Counter target spell. | David Palumbo
Disperse | Instant | | Return target nonland permanent to its owner's hand. | Steve Ellis
Essence Scatter | Instant | | Counter target creature spell. | Jon Foster
Frost Breath | Instant | | Tap up to two target creatures. Those creatures don't untap during their controller's next untap step. | Mike Bierek
Negate | Instant | | Counter target noncreature spell. | Jeremy Jarvis
Opportunity | Instant | | Target player draws four cards. | Allen Williams
Quicken | Instant | | The next sorcery spell you cast this turn can be cast as though it had flash. (It can be cast any time you could cast an instant.)
Draw a card. | Aleksi Briclot
Spell Blast | Instant | | Counter target spell with mana value X. (For example, if that spell's mana cost is {3}{U}{U}, X is 5.) | Jaime Jones
Altar's Reap | Instant | | As an additional cost to cast this spell, sacrifice a creature.
Draw two cards. | Donato Giancola
Doom Blade | Instant | | Destroy target nonblack creature. | Chippy
Grim Return | Instant | | Choose target creature card in a graveyard that was put there from the battlefield this turn. Put that card onto the battlefield under your control. | Seb McKinnon
Vile Rebirth | Instant | | Exile target creature card from a graveyard. Create a 2/2 black Zombie creature token. | Erica Yang
Wring Flesh | Instant | | Target creature gets -3/-1 until end of turn. | Izzy
Chandra's Outrage | Instant | | Chandra's Outrage deals 4 damage to target creature and 2 damage to that creature's controller. | Christopher Moeller
Shock | Instant | | Shock deals 2 damage to any target. | Jon Foster
3.5 LSV
Smelt | Instant | | Destroy target artifact. | Zoltan Boros
Thunder Strike | Instant | | Target creature gets +2/+0 and gains first strike until end of turn. (It deals combat damage before creatures without first strike.) | Wayne Reynolds
Volcanic Geyser | Instant | | Volcanic Geyser deals X damage to any target. | Clint Cearley
Wild Ricochet | Instant | | You may choose new targets for target instant or sorcery spell. Then copy that spell. You may choose new targets for the copy. | Dan Scott
Fog | Instant | | Prevent all combat damage that would be dealt this turn. | Jaime Jones
Giant Growth | Instant | | Target creature gets +3/+3 until end of turn. | Matt Cavotta
Naturalize | Instant | | Destroy target artifact or enchantment. | Tim Hildebrandt
Plummet | Instant | | Destroy target creature with flying. | Pete Venters
Ranger's Guile | Instant | | Target creature you control gets +1/+1 and gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.) | Steve Prescott
Savage Summoning | Instant | | This spell can't be countered.
The next creature spell you cast this turn can be cast as though it had flash. That spell can't be countered. That creature enters the battlefield with an additional +1/+1 counter on it. | Johann Bodin
Windstorm | Instant | | Windstorm deals X damage to each creature with flying. | Rob Alexander