
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

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

Kellan, Planar Trailblazer | Legendary Creature | Human Faerie Scout | {1}{R}: If Kellan is a Scout, it becomes a Human Faerie Detective and gains "Whenever Kellan deals combat damage to a player, exile the top card of your library. You may play that card this turn."
{2}{R}: If Kellan is a Detective, it becomes a 3/2 Human Faerie Rogue and gains double strike. | Zoltan Boros

Searslicer Goblin | Creature | Goblin Warrior | Raid — At the beginning of your end step, if you attacked this turn, create a 1/1 red Goblin creature token. | Wayne Reynolds

Brass's Bounty | Sorcery | | For each land you control, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.") | Grzegorz Rutkowski

Drakuseth, Maw of Flames | Legendary Creature | Dragon | Flying
Whenever Drakuseth, Maw of Flames attacks, it deals 4 damage to any target and 3 damage to each of up to two other targets. | Grzegorz Rutkowski

Etali, Primal Storm | Legendary Creature | Elder Dinosaur | Whenever Etali, Primal Storm attacks, exile the top card of each player's library, then you may cast any number of spells from among those cards without paying their mana costs. | Raymond Swanland

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

Krenko, Mob Boss | Legendary Creature | Goblin Warrior | {T}: Create X 1/1 red Goblin creature tokens, where X is the number of Goblins you control. | Lie Setiawan

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

Terror of Mount Velus | Creature | Dragon | Flying
Double strike (This creature deals both first-strike and regular combat damage.)
When this creature enters, creatures you control gain double strike until end of turn. | Billy Christian

Swiftblade Vindicator | Creature | Human Soldier | Double strike, vigilance, trample | Viktor Titov

Thousand-Year Storm | Enchantment | | Whenever you cast an instant or sorcery spell, copy it for each other instant and sorcery spell you've cast before it this turn. You may choose new targets for the copies. | Dimitar Marinski

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

Ashroot Animist | Creature | Lizard Druid | Trample
When this creature attacks, another target creature you control gains trample and gets +X/+X until end of turn, where X is this creature's power. | Caio Monteiro