These are the most valuable Sword and Shield booster boxes, based on their TCGPlayer values
Coupled with that, its also comparably weak against other Starter Decks in more limited settings
Frost Titan is the weakest of the five, but it's still a draft and cube bomb that can be very hard to remove from the board and boasts impressive stats for a Blue creature
Floral Evoker has a landfall effect that works great with Teval, and will grow rapidly alongside the Spirit Dragon
Before this, I really couldn't find concise written guide to the Adventurer Engine.
Adriana's Valor Advantageous Proclamation Amulet of Quoz Assemble the Rank and Vile Backup Plan Black Lotus Brago's Favor Bronze Tablet Chaos Orb Double Stroke Echoing Boon Emissary's Ploy Emrakul, the Aeons Torn Golos, Tireless Pilgrim Hired Heist Hold the Perimeter Hymn of the Wilds Immediate Action Incendiary Dissent Iterative Analysis Jeweled Bird Jeweled Lotus Karakas Library of Alexandria Mana Crypt Mox Emerald Mox Jet Mox Pearl Mox Ruby Mox Sapphire Muzzio's Preparations Natural Unity Paradox Engine Power Play Secret Summoning Secrets of Paradise Sentinel Dispatch Sovereign's Realm Summoner's Bond Sundering Titan Time Vault Tolarian Academy Unexpected Potential Weight Advantage Worldknit