Bloomburrow

Daring Waverider | Creature | Otter Wizard | When Daring Waverider enters, you may cast target instant or sorcery card with mana value 4 or less from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead. | Wisnu Tan

Eddymurk Crab | Creature | Elemental Crab | Flash This spell costs {1} less to cast for each instant and sorcery card in your graveyard. Eddymurk Crab enters tapped if it's not your turn. When Eddymurk Crab enters, tap up to two target creatures. | PINDURSKI

Knightfisher | Creature | Bird Knight | Flying Whenever another nontoken Bird you control enters, create a 1/1 blue Fish creature token. | Jakob Eirich

Long River Lurker | Creature | Frog Scout | Ward {1} Other Frogs you control have ward {1}. When Long River Lurker enters, target creature you control can't be blocked this turn. Whenever that creature deals combat damage this turn, you may exile it. If you do, return it to the battlefield under its owner's control. | Valera Lutfullina

Mindwhisker | Creature | Rat Wizard | At the beginning of your upkeep, surveil 1. (Look at the top card of your library. You may put it into your graveyard.) Threshold — As long as seven or more cards are in your graveyard, creatures your opponents control get -1/-0. | Alexander Mokhov

Plumecreed Escort | Creature | Bird Scout | Flash Flying When Plumecreed Escort enters, target creature you control gains hexproof until end of turn. | Manuel Castañón

Shoreline Looter | Creature | Rat Rogue | Shoreline Looter can't be blocked. Threshold — Whenever Shoreline Looter deals combat damage to a player, draw a card. Then discard a card unless seven or more cards are in your graveyard. | PINDURSKI

Splash Lasher | Creature | Frog Wizard | Offspring {1}{U} (You may pay an additional {1}{U} as you cast this spell. If you do, when this creature enters, create a 1/1 token copy of it.) When this creature enters, tap up to one target creature and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.) | Brian Valeza

Plumecreed Mentor | Creature | Bird Scout | Flying Whenever Plumecreed Mentor or another creature you control with flying enters, put a +1/+1 counter on target creature you control without flying. | Henry Peters

Tidecaller Mentor | Creature | Rat Wizard | Menace Threshold — When Tidecaller Mentor enters, if seven or more cards are in your graveyard, return up to one target nonland permanent to its owner's hand. | Irina Nordsol

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

Lilysplash Mentor | Creature | Frog Druid | Reach {1}{G}{U}: Exile another target creature you control, then return it to the battlefield under its owner's control with a +1/+1 counter on it. Activate only as a sorcery. | Aldo Domínguez