
Devouring Light | Instant | | Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
Exile target attacking or blocking creature. | Slawomir Maniak

Pillar of Light | Instant | | Exile target creature with toughness 4 or greater. | Erica Yang

Dissipate | Instant | | Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard. | Tomasz Jedruszek

Polymorphist's Jest | Instant | | Until end of turn, each creature target player controls loses all abilities and becomes a blue Frog with base power and toughness 1/1. | Craig J Spearing

Necrobite | Instant | | Target creature gains deathtouch until end of turn. Regenerate it. (The next time that creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat. Any amount of damage a creature with deathtouch deals to a creature is enough to destroy it.) | Nils Hamm

Chord of Calling | Instant | | Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
Search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle. | Karl Kopinski

Hunter's Ambush | Instant | | Prevent all combat damage that would be dealt by nongreen creatures this turn. | David Palumbo