These are Contract from Below, Darkpact, Demonic Attorney, Earthbind, Weakness, Crusade
Indomitable Archangel gives them shroud, meaning they can't be targeted by anything , making it significantly harder to remove them since Vehicles dodge board wipes as they aren't creatures on your opponents' turns
Many cards make tokens, and many of those tokens have toxic

The removal spells in here are quite nice, and theres a bunch, but my vote for unexpectedly powerful dark horse here is the instant-speed tutor (note the flash text there!): Waterlogged Teachings / Inundated Archive Bloodsoaked Insight / Sanguine Morass Boggart Trawler / Boggart Bog Bridgeworks Battle / Tanglespan Bridgeworks Disciple of Freyalise / Garden of Freyalise Drowner of Truth / Drowned Jungle Fell the Profane / Fell Mire Glasswing Grace / Age-Graced Chapel Hydroelectric Specimen / Hydroelectric Laboratory Legion Leadership / Legion Stronghold Pinnacle Monk / Mystic Peak Razorgrass Ambush / Razorgrass Field Revitalizing Repast / Old-Growth Grove Rush of Inspiration / Crackling Falls Sink into Stupor / Soporific Springs Strength of the Harvest / Haven of the Harvest Stump Stomp / Burnwillow Clearing Sundering Eruption / Volcanic Fissure Suppression Ray / Orderly Plaza Waterlogged Teachings / Inundated Archive Witch Enchanter / Witch-Blessed Meadow And you gotta catch 'em all for Commander

Its perfect to set up your next draw with a key combo piece, mana rock, or value engine