
Equilibrium Adept | Creature | Dog Monk | When this creature enters, exile the top card of your library. Until the end of your next turn, you may play that card.
Flurry — Whenever you cast your second spell each turn, this creature gains double strike until end of turn. | Leroy Steinmann

Fleeting Effigy | Creature | Elemental | Haste
At the beginning of your end step, return this creature to its owner's hand. (Return it only if it's on the battlefield.)
{2}{R}: This creature gets +2/+0 until end of turn. | Darren Tan

Iridescent Tiger | Creature | Cat | When this creature enters, if you cast it, add {W}{U}{B}{R}{G}. | Fajareka Setiawan

Shocking Sharpshooter | Creature | Human Archer | Reach
Whenever another creature you control enters, this creature deals 1 damage to target opponent. | Warren Mahy

Sunset Strikemaster | Creature | Human Monk | {T}: Add {R}.
{2}{R}, {T}, Sacrifice this creature: It deals 6 damage to target creature with flying. | Zara Alfonso

Unsparing Boltcaster | Creature | Ogre Wizard | When this creature enters, it deals 5 damage to target creature an opponent controls that was dealt damage this turn. | Gaboleps

Zurgo's Vanguard | Creature | Dog Soldier | Mobilize 1 (Whenever this creature attacks, create a tapped and attacking 1/1 red Warrior creature token. Sacrifice it at the beginning of the next end step.)
This creature's power is equal to the number of creatures you control. | Michele Giorgi

Runescale Stormbrood | Creature | Dragon | Flying
Whenever you cast a noncreature spell or a Dragon spell, this creature gets +2/+0 until end of turn. | Loïc Canavaggia

Cori Mountain Stalwart | Creature | Human Monk | Flurry — Whenever you cast your second spell each turn, this creature deals 2 damage to each opponent and you gain 2 life. | Josiah "Jo" Cameron

Effortless Master | Creature | Orc Monk | Vigilance
Menace (This creature can't be blocked except by two or more creatures.)
This creature enters with two +1/+1 counters on it if you've cast two or more spells this turn. | Lie Setiawan

Jeskai Brushmaster | Creature | Orc Monk | Double strike
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) | Nino Vecia

Jeskai Shrinekeeper | Creature | Dragon | Flying, haste
Whenever this creature deals combat damage to a player, you gain 1 life and draw a card. | Andrew Mar

Bone-Cairn Butcher | Creature | Demon | Mobilize 2 (Whenever this creature attacks, create two tapped and attacking 1/1 red Warrior creature tokens. Sacrifice them at the beginning of the next end step.)
Attacking tokens you control have deathtouch. | David Palumbo

Sonic Shrieker | Creature | Dragon | Flying
When this creature enters, it deals 2 damage to any target and you gain 2 life. If a player is dealt damage this way, they discard a card. | Jason A. Engle

Karakyk Guardian | Creature | Dragon | Flying, vigilance, trample
This creature has hexproof if it hasn't dealt damage yet. (It can't be the target of spells or abilities your opponents control.) | Joe Slucher