(Bevy of Beebles) Bag of Devouring Bagel and Schmear Baron Bertram Graywater Basilica Skullbomb Battle of Frost and Fire Bearer of Overwhelming Truths Beetle-Headed Merchants Belligerent Guest Benthic Criminologists Biomechan Engineer Blood Fountain Blood Petal Celebrant Blood Servitor Bloodcrazed Socialite Bloodtithe Harvester Bloodvial Purveyor Bloody Betrayal Bound // Determined Braids's Frightful Return Braids, Arisen Nightmare Brass Secretary Briarbridge Patrol Briarbridge Tracker Bucket List (playtest) Bushmeat Poacher Buzzard-Wasp Colony Bygone Bishop Byway Courier Caesar, Legion's Emperor Caldaia Guardian Caldaia Strongarm Callous Inspector Candlestick Capashen Standard Carnage Altar Carnage Interpreter Case of the Filched Falcon Ceremonial Knife Chalk Outline Chandra, Spark Hunter Chittering Skitterling Cirith Ungol Patrol Clackbridge Troll Clan Crafter Cold Case Cracker Combat Courier Commissar Severina Raine Confront the Unknown Construct a Cosmic Cube Cryogen Relic
These cards can only be found in ONE Collector Boosters, and you get one step-and-compleat foil in each Collector Booster
The set had eight major creature types (Elementals, Elves, Faeries, Giants, Goblins, Kithkin, Merfolk, and Treefolk), and the majority of creatures in the block were one of those types
You can see an example in the third picture
Expansion / Explosion Spellslinging decks are often about flexibility, and Expansion / Explosion provides it in spades: You get to copy any instant or sorcery (not just yours) that costs up to 4, and in the late game you can offload a lot of damage to any target of your choice
