42 cards where (the card types include “imp” or the text includes “imp creature token”) and (it’s legal in Commander or the set is “mh2”)

Stinkweed Imp (Duel Decks Anthology: Divine vs. Demonic #36)
Skirge Familiar (Modern Horizons 2 #276)
Putrid Imp (Vintage Masters #135)
Cadaver Imp (Commander Masters #141)
Flesh-Eater Imp (Duel Decks: Mirrodin Pure vs. New Phyrexia #58)
Kitchen Imp (Modern Horizons 2 #89)
Judith, Carnage Connoisseur (Murders at Karlov Manor #210)
Vault Skirge (New Phyrexia #76)
Blim, Comedic Genius (Commander Legends #272)
Soot Imp (Duel Decks Anthology: Divine vs. Demonic #37)
Nefarious Imp (Commander Legends: Battle for Baldur's Gate #137)
Pilfering Imp (Guilds of Ravnica #81)
Bonepicker Skirge (Phyrexia: All Will Be One #86)
Daggerdrome Imp (Battlebond #140)
Blight Keeper (Ixalan #92)
Fetid Imp (Core Set 2021 #98)
Maddening Imp (Tempest #143)
Chaos Imps (Return to Ravnica #90)
Norritt (Ice Age #155)
Reckless Imp (Dragons of Tarkir #115)
Infernal Pet (Kaldheim #99)
Nettling Imp (Summer Magic / Edgar #119)
Carrion Imp (Ravnica Allegiance #66)
Deepcavern Imp (Time Spiral Remastered #110)
Bog Imp (Ninth Edition #116)
Cackling Imp (Duel Decks Anthology: Divine vs. Demonic #41)
Teferi's Imp (Mirage #98)
Chimney Imp (Mirrodin #59)
Foul Imp (Duel Decks: Nissa vs. Ob Nixilis #49)
Pit Imp (Tempest #148)
Daggerclaw Imp (Ravnica: Clue Edition #108)
Fire Imp (Masters Edition IV #113)
Demon's Jester (Duel Decks Anthology: Divine vs. Demonic #38)
Crazed Skirge (Urza's Saga #125)
Dusk Imp (Duel Decks Anthology: Divine vs. Demonic #34)
Ravenous Skirge (Urza's Saga #152)
Slinking Skirge (Urza's Destiny #71)
Blistering Dieflyn (Shadowmoor #82)
Skittering Skirge (Urza's Saga #158)
Fledgling Imp (Odyssey #137)
Volcano Imp (Planeshift #56)
Tethered Skirge (Urza's Legacy #70)

Though this query has ended, its relics still slumber in New Argive.