I would expect their value on the secondary card market to follow suit, generally landing somewhere between these two rarity types
In the case of Charge Across the Araba, you can see what they were going for: attack with the team, bounce all your lands to buff everyone, win the game
Assaultron Dominator Codsworth, Handy Helper Curie, Emergent Intelligence ED-E, Lonesome Eyebot Mister Gutsy Rex, Cyber-Hound Rose, Cutthroat Raider Securitron Squadron Sentry Bot The Motherlode, Excavator Yes Man, Personal Securitron

Advanced Search Sets Random Syntax Ambush Wolf Anara, Wolvid Familiar Arctic Wolves Arlinn's Wolf Ascendant Packleader Bounding Wolf Briarpack Alpha Bristlepack Sentry Cemetery Prowler Darkthicket Wolf Dire Wolf Prowler Dire Wolves Exuberant Wolfbear Fang of the Pack Ferocious Pup Fierce Witchstalker Flourishing Hunter Hollow Scavenger Hollowhenge Overlord Howlgeist Howling Wolf Immerwolf Lone Wolf Nightpack Ambusher Nyxborn Wolf Pack Guardian Packsong Pup Pestilent Wolf Primal Adversary Primo, the Unbounded Quilled Wolf Rot Wolf Sacred Wolf Sarulf's Packmate Sarulf, Realm Eater Silverfur Partisan Skalla Wolf Snarling Wolf Somberwald Alpha Spectral Hunt-Caller Spirit of the Hunt Sporeback Wolf Summon: Fenrir Tel-Jilad Wolf Territorial Witchstalker Thornhide Wolves Timber Wolves Timberpack Wolf Torgal, A Fine Hound Voja, Jaws of the Conclave Wandering Wolf Watchwolf Wicked Wolf Wildsear, Scouring Maw Witchstalker Wolf Pack Wolfir Avenger Wolfir Silverheart Wyluli Wolf Young Wolf

It shuts down spellslinger strategies harder, as they often want to leverage at least a few expensive spells
We havent seen shroud as a keyword since Mirrodin Besieged (its referenced on Arcane Lighthouse, but only in getting rid of it from opposing creatures), and I dont know how many people out there are mourning shrouds long-overdue demise