Here are my favorite Mouse archetype Common and Uncommon rarity cards from Bloomburrow I tested out during Early Access and will continue to test through Prerelease, as well as MTG Arena Draft/Sealed events
Spider-Sense Instant Web-slinging (You may cast this spell for if you also return a tapped creature you control to its owner's hand.) Counter target instant spell, sorcery spell, or triggered ability
The Moment's last ability will destroy itself before you can sacrifice it if there are two or more time counters on it as its last ability resolves
Then your spells from non-hand sources also get a mana reduction, but this time just one
Found in English Collector boosters, you'll have the chance to pull one of 77 golden foil Traveling Chocobo cards, which will most likely be the most valuable cards in the whole set
Rust Elemental Rarity: Uncommon TYPE: Artifact Creature SUBTYPE: Elemental CMC: 4 Mana cost: USD: $3.25 EUR: 0.65 TIX: 0.03 EDHREC RANK: 6924 (4/4) Flying At the beginning of your upkeep, sacrifice another artifact
