
Ball Lightning | Creature | Elemental | Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
Haste (This creature can attack and {T} as soon as it comes under your control.)
At the beginning of the end step, sacrifice this creature. | Trevor Claxton

Dropkick Bomber | Creature | Goblin Warrior | Other Goblins you control get +1/+1.
{R}: Until end of turn, another target Goblin you control gains flying and "When this creature deals combat damage, sacrifice it." | Quintin Gleim

Crackling Cyclops | Creature | Cyclops Wizard | Whenever you cast a noncreature spell, this creature gets +3/+0 until end of turn. | Kev Walker

Electroduplicate | Sorcery | | Create a token that's a copy of target creature you control, except it has haste and "At the beginning of the end step, sacrifice this token."
Flashback {2}{R}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.) | Warren Mahy

Fiery Annihilation | Instant | | Fiery Annihilation deals 5 damage to target creature. Exile up to one target Equipment attached to that creature. If that creature would die this turn, exile it instead. | Warren Mahy

Goblin Boarders | Creature | Goblin Pirate | Raid — This creature enters with a +1/+1 counter on it if you attacked this turn. | Filipe Pagliuso

Brazen Scourge | Creature | Gremlin | Haste | Kev Walker

Firespitter Whelp | Creature | Dragon | Flying
Whenever you cast a noncreature or Dragon spell, Firespitter Whelp deals 1 damage to each opponent. | David Álvarez

Flamewake Phoenix | Creature | Phoenix | Flying, haste
Flamewake Phoenix attacks each combat if able.
Ferocious — At the beginning of combat on your turn, if you control a creature with power 4 or greater, you may pay {R}. If you do, return Flamewake Phoenix from your graveyard to the battlefield. | Min Yum

Goblin Surprise | Instant | | Choose one —
• Creatures you control get +2/+0 until end of turn.
• Create two 1/1 red Goblin creature tokens. | Kevin Sidharta

Seismic Rupture | Sorcery | | Seismic Rupture deals 2 damage to each creature without flying. | Jason A. Engle

Slagstorm | Sorcery | | Choose one —
• Slagstorm deals 3 damage to each creature.
• Slagstorm deals 3 damage to each player. | Dan Murayama Scott

Alesha, Who Laughs at Fate | Legendary Creature | Human Warrior | First strike
Whenever Alesha attacks, put a +1/+1 counter on it.
Raid — At the beginning of your end step, if you attacked this turn, return target creature card with mana value less than or equal to Alesha's power from your graveyard to the battlefield. | Ekaterina Burmak

Perforating Artist | Creature | Devil | Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
Raid — At the beginning of your end step, if you attacked this turn, each opponent loses 3 life unless that player sacrifices a nonland permanent of their choice or discards a card. | Arif Wijaya