Pioneer Masters

Coordinated Assault | Instant | | Up to two target creatures each get +1/+0 and gain first strike until end of turn. (They deal combat damage before creatures without first strike.) | John Severin Brassell

Draconic Roar | Instant | | As an additional cost to cast this spell, you may reveal a Dragon card from your hand. Draconic Roar deals 3 damage to target creature. If you revealed a Dragon card or controlled a Dragon as you cast this spell, Draconic Roar deals 3 damage to that creature's controller. | Kev Walker

Fall of the Hammer | Instant | | Target creature you control deals damage equal to its power to another target creature. | Adam Paquette

Valakut Awakening | Instant | | Put any number of cards from your hand on the bottom of your library, then draw that many cards plus one. | Campbell White

Wild Slash | Instant | | Ferocious — If you control a creature with power 4 or greater, damage can't be prevented this turn. Wild Slash deals 2 damage to any target. | Raymond Swanland

Smash to Smithereens | Instant | | Destroy target artifact. Smash to Smithereens deals 3 damage to that artifact's controller. | Pete Venters

Expedite | Instant | | Target creature gains haste until end of turn. Draw a card. | Kieran Yanner

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

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

Wear // Tear | Instant // Instant | | Destroy target artifact. Fuse (You may cast one or both halves of this card from your hand.) // Destroy target enchantment. Fuse (You may cast one or both halves of this card from your hand.) | Ryan Pancoast

Counterflux | Instant | | This spell can't be countered. Counter target spell you don't control. Overload {1}{U}{U}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.") | Adrián Rodríguez Pérez

Steam Augury | Instant | | Reveal the top five cards of your library and separate them into two piles. An opponent chooses one of those piles. Put that pile into your hand and the other into your graveyard. | Dave Kendall

Turn | Instant | | Until end of turn, target creature loses all abilities and becomes a red Weird with base power and toughness 0/1. Fuse (You may cast one or both halves of this card from your hand.) | Ryan Barger

Destructive Revelry | Instant | | Destroy target artifact or enchantment. Destructive Revelry deals 2 damage to that permanent's controller. | Kev Walker