Kor Bladewhirl | Creature | Kor Soldier Ally | Rally — Whenever Kor Bladewhirl or another Ally enters the battlefield under your control, creatures you control gain first strike until end of turn. | Steven Belledin
Serene Steward | Creature | Human Cleric Ally | Whenever you gain life, you may pay {W}. If you do, put a +1/+1 counter on target creature. | Magali Villeneuve
Carrier Thrall | Creature | Vampire | When Carrier Thrall dies, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this creature: Add {C}." | Lius Lasahido
Zulaport Cutthroat | Creature | Human Rogue Ally | Whenever Zulaport Cutthroat or another creature you control dies, each opponent loses 1 life and you gain 1 life. | Jason Rainville
Akoum Stonewaker | Creature | Human Shaman | Landfall — Whenever a land enters the battlefield under your control, you may pay {2}{R}. If you do, create a 3/1 red Elemental creature token with trample and haste. Exile that token at the beginning of the next end step. | Victor Adame Minguez
Rot Shambler | Creature | Fungus | Whenever another creature you control dies, put a +1/+1 counter on Rot Shambler. | Yeong-Hao Han
Skyrider Elf | Creature | Elf Warrior Ally | Flying
Converge — Skyrider Elf enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it. | Dan Scott
Tide Drifter | Creature | Eldrazi Drone | Devoid (This card has no color.)
Other colorless creatures you control get +0/+1. | Daarken
Forerunner of Slaughter | Creature | Eldrazi Drone | Devoid (This card has no color.)
{1}: Target colorless creature gains haste until end of turn. | James Zapata