Amazing Comeback || 3B || Instant || The next time you would lose the game this turn, instead draw seven cards and your life total becomes 1. || Exile Amazing Comeback.
Archfiend of Despair || 6BB || Creature -- Demon || 6/6 || Flying || Your opponents can't gain life. || At the beginning of each end step, each opponent loses life equal to the life that player lost this turn. (Damage causes loss of life.)
Charging Binox || 7G || Creature -- Beast || 7/5 || Assist (Another player can pay up to {7} of this spell's cost.) || Trample
Dwarven Lightsmith || 5W || Creature -- Dwarf Cleric || 3/4 || Assist (Another player can pay up to {5} of this spell's cost.) || When Dwarven Lightsmith enters the battlefield, creatures your team controls get +1/+1 until end of turn.
Fan Favorite || 3B || Creature -- Human Rogue || 2/2 || Assist (Another player can pay up to {3} of this spell's cost.) || {2}: Fan Favorite gets +1/+1 until end of turn. Any player may activate this ability.
Gorm the Great || 3G || Legendary Creature -- Giant Warrior || 2/7 || Partner with Virtus the Veiled (When this creature enters the battlefield, target player may put Virtus into their hand from their library, then shuffle.) || Vigilance || Gorm the Great must be blocked if able, and Gorm must be blocked by two or more creatures if able.
Huddle Up || 2U || Sorcery || Assist (Another player can pay up to {2} of this spell's cost.) || Two target players each draw a card.
Impetuous Protege || 2R || Creature -- Human Warrior || 0/4 || Partner with Proud Mentor (When this creature enters the battlefield, target player may put Proud Mentor into their hand from their library, then shuffle.) || Whenever Impetuous Protege attacks, it gets +X/+0 until end of turn, where X is the greatest power among tapped creatures your opponents control.
Mindblade Render || 1B || Creature -- Azra Warrior || 1/3 || Whenever your opponents are dealt combat damage, if any of that damage was dealt by a Warrior, you draw a card and you lose 1 life.
Pir's Whim || 3G || Sorcery || For each player, choose friend or foe. Each friend searches their library for a land card, puts it onto the battlefield tapped, then shuffles their library. Each foe sacrifices an artifact or enchantment they control.
Play of the Game || 6WW || Sorcery || Assist (Another player can pay up to {6} of this spell's cost.) || Exile all nonland permanents.
Proud Mentor || 2W || Creature -- Human Warrior || 1/1 || Partner with Impetuous Protege (When this creature enters the battlefield, target player may put Impetuous Protege into their hand from their library, then shuffle.) || {W}, {T}: Tap target creature.
Rowan Kenrith || 4RR || Legendary Planeswalker -- Rowan || 4 || [+2]: During target player's next turn, each creature that player controls attacks if able. || [-2]: Rowan Kenrith deals 3 damage to each tapped creature target player controls. || [-8]: Target player gets an emblem with "Whenever you activate an ability that isn't a mana ability, copy it. You may choose new targets for the copy." || Partner with Will Kenrith || Rowan Kenrith can be your commander.
Rushblade Commander || BR || Creature -- Azra Warrior || 2/2 || Warriors your team controls have haste.
Soaring Show-Off || 2U || Creature -- Bird Warrior || 2/2 || Flying || When Soaring Show-Off enters the battlefield, each player draws a card.
Soulblade Renewer || 4G || Creature -- Elf Warrior || 2/2 || Partner with Soulblade Corrupter (When this creature enters the battlefield, target player may put Soulblade Corrupter into their hand from their library, then shuffle.) || When Soulblade Renewer enters the battlefield, support 2. (Put a +1/+1 counter on each of up to two other target creatures.)
Soulblade Corrupter || 4B || Creature -- Human Warrior || 3/3 || Partner with Soulblade Renewer (When this creature enters the battlefield, target player may put Soulblade Renewer into their hand from their library, then shuffle.) || Deathtouch || Whenever a creature with a +1/+1 counter on it attacks one of your opponents, that creature gains deathtouch until end of turn.
Virtus the Veiled || 2B || Legendary Creature -- Azra Assassin || 1/1 || Partner with Gorm the Great (When this creature enters the battlefield, target player may put Gorm into their hand from their library, then shuffle.) || Deathtouch || Whenever Virtus the Veiled deals combat damage to a player, that player loses half their life, rounded up.
Will Kenrith || 4UU || Legendary Planeswalker -- Will || 4 || [+2]: Until your next turn, up to two target creatures each have base power and toughness 0/3 and lose all abilities. || [-2]: Target player draws two cards. Until your next turn, instant, sorcery, and planeswalker spells that player casts cost {2} less to cast. || [-8]: Target player gets an emblem with "Whenever you cast an instant or sorcery spell, copy it. You may choose new targets for the copy." || Partner with Rowan Kenrith || Will Kenrith can be your commander.

REPRINTS:

Auger Spree (originally from Return to Ravnica, reprinted in Modern Masters 2017)
Centaur Healer (originally from Return to Ravnica, reprinted in Modern Masters 2017)
Daggerdrome Imp (originally from Return to Ravnica)
Doomed Dissenter (originally from Amonkhet)
Doomed Traveler (originally from Innistrad, reprinted in Duel Decks: Sorin vs Tibalt, Conspiracy, Duel Decks: Blessed vs Cursed, Conspiracy: Take the Crown, Archenemy: Nicol Bolas, and Iconic Masters)
Doubling Season (originally from Ravnica: City of Guilds, reprinted in Modern Masters)
Eager Construct (originally from Kaladesh)
Expedition Raptor (originally from Oath of the Gatewatch, reprinted in Archenemy: Nicol Bolas)
Fertile Ground (originally from Urza's Saga, reprinted in Invasion, Eighth Edition, Lorwyn, Planechase, and Duel Decks: Phyrexia vs The Coalition)
Kraken Hatchling (originally from Zendikar, reprinted in Magic 2013 and Modern Masters 2017)
Peregrine Drake (originally from Urza's Saga, reprinted in Planechase 2012, Eternal Masters, and Planechase Anthology)
Shoulder to Shoulder (originally from Oath of the Gatewatch, reprinted in Archenemy: Nicol Bolas)