War of the Spark

Ironclad Krovod | Creature | Beast | | Sam Rowan

Loxodon Sergeant | Creature | Elephant Soldier | Vigilance When Loxodon Sergeant enters the battlefield, other creatures you control gain vigilance until end of turn. | Jesper Ejsing

God-Eternal Kefnet | Legendary Creature | Zombie God | Flying You may reveal the first card you draw each turn as you draw it. Whenever you reveal an instant or sorcery card this way, copy that card and you may cast the copy. That copy costs {2} less to cast. When God-Eternal Kefnet dies or is put into exile from the battlefield, you may put it into its owner's library third from the top. | Lius Lasahido

Rescuer Sphinx | Creature | Sphinx | Flying As Rescuer Sphinx enters the battlefield, you may return a nonland permanent you control to its owner's hand. If you do, Rescuer Sphinx enters the battlefield with a +1/+1 counter on it. | Jesper Ejsing

Spark Double | Creature | Illusion | You may have Spark Double enter the battlefield as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it's a creature, it enters with an additional loyalty counter on it if it's a planeswalker, and it isn't legendary. | Eric Deschamps

Thunder Drake | Creature | Elemental Drake | Flying Whenever you cast your second spell each turn, put a +1/+1 counter on Thunder Drake. | Yeong-Hao Han

Charity Extractor | Creature | Human Knight | Lifelink | Matt Stewart

Herald of the Dreadhorde | Creature | Zombie Warrior | When Herald of the Dreadhorde dies, amass 2. (Put two +1/+1 counters on an Army you control. If you don't control one, create a 0/0 black Zombie Army creature token first.) | Heonhwa Choe

Dreadhorde Twins | Creature | Zombie Jackal Warrior | When Dreadhorde Twins enters the battlefield, amass 2. (Put two +1/+1 counters on an Army you control. If you don't control one, create a 0/0 black Zombie Army creature token first.) Zombie tokens you control have trample. | Johannes Voss

Goblin Assault Team | Creature | Goblin Warrior | Haste When Goblin Assault Team dies, put a +1/+1 counter on target creature you control. | Zoltan Boros

Neheb, Dreadhorde Champion | Legendary Creature | Zombie Minotaur Warrior | Trample Whenever Neheb, Dreadhorde Champion deals combat damage to a player or planeswalker, you may discard any number of cards. If you do, draw that many cards and add that much {R}. Until end of turn, you don't lose this mana as steps and phases end. | Igor Kieryluk

Turret Ogre | Creature | Ogre Warrior | Reach (This creature can block creatures with flying.) When Turret Ogre enters the battlefield, if you control another creature with power 4 or greater, Turret Ogre deals 2 damage to each opponent. | Johann Bodin

Bloom Hulk | Creature | Plant Elemental | When Bloom Hulk enters the battlefield, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.) | Even Amundsen

Centaur Nurturer | Creature | Centaur Druid | When Centaur Nurturer enters the battlefield, you gain 3 life. {T}: Add one mana of any color. | Even Amundsen

Mowu, Loyal Companion | Legendary Creature | Dog | Vigilance, trample If one or more +1/+1 counters would be put on Mowu, Loyal Companion, that many plus one +1/+1 counters are put on it instead. | Kimonas Theodossiou

Elite Guardmage | Creature | Human Wizard | Flying When Elite Guardmage enters the battlefield, you gain 3 life and draw a card. | PINDURSKI

Storrev, Devkarin Lich | Legendary Creature | Zombie Elf Wizard | Trample Whenever Storrev, Devkarin Lich deals combat damage to a player or planeswalker, return to your hand target creature or planeswalker card in your graveyard that wasn't put there this combat. | Igor Kieryluk

Saheeli's Silverwing | Artifact Creature | Drake | Flying When Saheeli's Silverwing enters the battlefield, look at the top card of target opponent's library. | Daniel Ljunggren