Crater's Claws | Sorcery |  | Crater's Claws deals X damage to any target.
Ferocious — Crater's Claws deals X plus 2 damage instead if you control a creature with power 4 or greater. | Noah Bradley
                
                        
                    Dragon-Style Twins | Creature | Human Monk | Double strike
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) | Wesley Burt
                
                                    3 LSV
                        
                    Howl of the Horde | Sorcery |  | When you cast your next instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.
Raid — If you attacked this turn, when you cast your next instant or sorcery spell this turn, copy that spell an additional time. You may choose new targets for the copy. | Slawomir Maniak
                
                        
                    Jeering Instigator | Creature | Goblin Rogue | Morph {2}{R} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
When Jeering Instigator is turned face up, if it's your turn, gain control of another target creature until end of turn. Untap that creature. It gains haste until end of turn. | Willian Murai
                
                        
                    Rattleclaw Mystic | Creature | Human Shaman | {T}: Add {G}, {U}, or {R}.
Morph {2} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
When Rattleclaw Mystic is turned face up, add {G}{U}{R}. | Tyler Jacobson
                
                        
                    Deflecting Palm | Instant |  | The next time a source of your choice would deal damage to you this turn, prevent that damage. If damage is prevented this way, Deflecting Palm deals that much damage to that source's controller. | Eric Deschamps
                
                        
                    Mindswipe | Instant |  | Counter target spell unless its controller pays {X}. Mindswipe deals X damage to that spell's controller. | Ryan Alexander Lee
                
                        
                    Flying Crane Technique | Instant |  | Untap all creatures you control. They gain flying and double strike until end of turn. | Jack Wang
                
                        
                    Jeskai Ascendancy | Enchantment |  | Whenever you cast a noncreature spell, creatures you control get +1/+1 until end of turn. Untap those creatures.
Whenever you cast a noncreature spell, you may draw a card. If you do, discard a card. | Dan Scott
                
                        
                    Mantis Rider | Creature | Human Monk | Flying, vigilance, haste | Johann Bodin
                
                        
                    Sage of the Inward Eye | Creature | Djinn Wizard | Flying
Whenever you cast a noncreature spell, creatures you control gain lifelink until end of turn. | Chase Stone
                
                        
                    Ankle Shanker | Creature | Goblin Berserker | Haste
Whenever Ankle Shanker attacks, creatures you control gain first strike and deathtouch until end of turn. | Zoltan Boros
                
                        
                    Butcher of the Horde | Creature | Demon | Flying
Sacrifice another creature: Butcher of the Horde gains your choice of vigilance, lifelink, or haste until end of turn. | Karl Kopinski
                
                        
                    Crackling Doom | Instant |  | Crackling Doom deals 2 damage to each opponent. Each opponent sacrifices a creature with the greatest power among creatures that player controls. | Yohann Schepacz
                
                        
                    Mardu Ascendancy | Enchantment |  | Whenever a nontoken creature you control attacks, create a 1/1 red Goblin creature token that's tapped and attacking.
Sacrifice Mardu Ascendancy: Creatures you control get +0/+3 until end of turn. | Jason Chan
                
                        
                    Avalanche Tusker | Creature | Elephant Warrior | Whenever Avalanche Tusker attacks, target creature defending player controls blocks it this combat if able. | Matt Stewart
                
                        
                    Savage Knuckleblade | Creature | Ogre Warrior | {2}{G}: Savage Knuckleblade gets +2/+2 until end of turn. Activate only once each turn.
{2}{U}: Return Savage Knuckleblade to its owner's hand.
{R}: Savage Knuckleblade gains haste until end of turn. | Chris Rahn
                
                        
                    Temur Ascendancy | Enchantment |  | Creatures you control have haste.
Whenever a creature with power 4 or greater enters the battlefield under your control, you may draw a card. | Jaime Jones
                
                        
                    Trap Essence | Instant |  | Counter target creature spell. Put two +1/+1 counters on up to one target creature. | Raymond Swanland