Emeria Shepherd | Creature | Angel | Flying
Landfall — Whenever a land enters the battlefield under your control, you may return target nonland permanent card from your graveyard to your hand. If that land is a Plains, you may return that nonland permanent card to the battlefield instead. | Cynthia Sheppard
Felidar Sovereign | Creature | Cat Beast | Vigilance, lifelink
At the beginning of your upkeep, if you have 40 or more life, you win the game. | Zoltan Boros & Gabor Szikszai
Hero of Goma Fada | Creature | Human Knight Ally | Rally — Whenever Hero of Goma Fada or another Ally enters the battlefield under your control, creatures you control gain indestructible until end of turn. | Lake Hurwitz
Lantern Scout | Creature | Human Scout Ally | Rally — Whenever Lantern Scout or another Ally enters the battlefield under your control, creatures you control gain lifelink until end of turn. | Steven Belledin
Planar Outburst | Sorcery | | Destroy all nonland creatures.
Awaken 4—{5}{W}{W}{W} (If you cast this spell for {5}{W}{W}{W}, also put four +1/+1 counters on target land you control and it becomes a 0/0 Elemental creature with haste. It's still a land.) | Vincent Proce
Prism Array | Enchantment | | Converge — Prism Array enters the battlefield with a crystal counter on it for each color of mana spent to cast it.
Remove a crystal counter from Prism Array: Tap target creature.
{W}{U}{B}{R}{G}: Scry 3. (Look at the top three cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.) | Philip Straub
Noyan Dar, Roil Shaper | Legendary Creature | Merfolk Ally | Whenever you cast an instant or sorcery spell, you may put three +1/+1 counters on target land you control. If you do, that land becomes a 0/0 Elemental creature with haste that's still a land. | Karl Kopinski
March from the Tomb | Sorcery | | Return any number of target Ally creature cards with total mana value 8 or less from your graveyard to the battlefield. | Lake Hurwitz
Angelic Captain | Creature | Angel Ally | Flying
Whenever Angelic Captain attacks, it gets +1/+1 until end of turn for each other attacking Ally. | Volkan Baǵa
Munda, Ambush Leader | Legendary Creature | Kor Ally | Haste
Rally — Whenever Munda, Ambush Leader or another Ally enters the battlefield under your control, you may look at the top four cards of your library. If you do, reveal any number of Ally cards from among them, then put those cards on top of your library in any order and the rest on the bottom in any order. | Johannes Voss
Veteran Warleader | Creature | Human Soldier Ally | Veteran Warleader's power and toughness are each equal to the number of creatures you control.
Tap another untapped Ally you control: Veteran Warleader gains your choice of first strike, vigilance, or trample until end of turn. | Josu Hernaiz
Canopy Vista | Land | Forest Plains | ({T}: Add {G} or {W}.)
Canopy Vista enters the battlefield tapped unless you control two or more basic lands. | Adam Paquette
Prairie Stream | Land | Plains Island | ({T}: Add {W} or {U}.)
Prairie Stream enters the battlefield tapped unless you control two or more basic lands. | Adam Paquette
Shambling Vent | Land | | Shambling Vent enters the battlefield tapped.
{T}: Add {W} or {B}.
{1}{W}{B}: Shambling Vent becomes a 2/3 white and black Elemental creature with lifelink until end of turn. It's still a land. | Jung Park