Bloomburrow

Brazen Collector | Creature | Raccoon Rogue | First strike Whenever Brazen Collector attacks, add {R}. Until end of turn, you don't lose this mana as steps and phases end. | Aldo Domínguez

Coruscation Mage | Creature | Otter Wizard | Offspring {2} (You may pay an additional {2} as you cast this spell. If you do, when this creature enters, create a 1/1 token copy of it.) Whenever you cast a noncreature spell, this creature deals 1 damage to each opponent. | Gaboleps

Emberheart Challenger | Creature | Mouse Warrior | Haste Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) Valiant — Whenever Emberheart Challenger becomes the target of a spell or ability you control for the first time each turn, exile the top card of your library. Until end of turn, you may play that card. | Chris Rahn

Flamecache Gecko | Creature | Lizard Warlock | When Flamecache Gecko enters, if an opponent lost life this turn, add {B}{R}. {1}{R}, Discard a card: Draw a card. | Brian Valeza

Manifold Mouse | Creature | Mouse Soldier | Offspring {2} (You may pay an additional {2} as you cast this spell. If you do, when this creature enters, create a 1/1 token copy of it.) At the beginning of combat on your turn, target Mouse you control gains your choice of double strike or trample until end of turn. | Randy Vargas

Raccoon Rallier | Creature | Raccoon Bard | {T}: Target creature you control gains haste until end of turn. Activate only as a sorcery. | Borja Pindado

Steampath Charger | Creature | Lizard Warlock | Offspring {2} (You may pay an additional {2} as you cast this spell. If do, when this creature enters, create a 1/1 token copy of it.) When this creature dies, it deals 1 damage to target player. | Ilse Gort

Whiskerquill Scribe | Creature | Mouse Citizen | Valiant — Whenever Whiskerquill Scribe becomes the target of a spell or ability you control for the first time each turn, you may discard a card. If you do, draw a card. | Matt Stewart

Stormcatch Mentor | Creature | Otter Wizard | Haste Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) Instant and sorcery spells you cast cost {1} less to cast. | Manuel Castañón

Fireglass Mentor | Creature | Lizard Warlock | At the beginning of your second main phase, if an opponent lost life this turn, exile the top two cards of your library. Choose one of them. Until end of turn, you may play that card. | Henry Peters

Gev, Scaled Scorch | Legendary Creature | Lizard Mercenary | Ward—Pay 2 life. Other creatures you control enter with an additional +1/+1 counter on them for each opponent who lost life this turn. Whenever you cast a Lizard spell, Gev, Scaled Scorch deals 1 damage to target opponent. | Mark Zug

Wandertale Mentor | Creature | Raccoon Bard | Whenever you expend 4, put a +1/+1 counter on Wandertale Mentor. (You expend 4 as you spend your fourth total mana to cast spells during a turn.) {T}: Add {R} or {G}. | Jakub Kasper