27 cards where the illustration contains “tentaclehaired”

Backstreet Bruiser (Streets of New Capenna #35)
Cephalid Facetaker (New Capenna Commander #23)
Fugitive Wizard (Legions #38)
Long-Term Plans (Scourge #38)
Master of the Veil (Legions #43)
Mercurial Spelldancer (Phyrexia: All Will Be One #61)
Obscura Ascendancy (Streets of New Capenna #207)
Obscura Ascendancy (Streets of New Capenna #322)
Obscura Interceptor (Streets of New Capenna #209)
Omen Hawker (March of the Machine #70)
Parallel Thoughts (Scourge #44)
Psychic Pickpocket (Streets of New Capenna #54)
Queza, Augur of Agonies (Streets of New Capenna #212)
Queza, Augur of Agonies (Streets of New Capenna #326)
Raven Guild Initiate (Scourge #46)
Raven Guild Master (Scourge #47)
Revel Ruiner (Streets of New Capenna #91)
Rigo, Streetwise Mentor (Streets of New Capenna #215)
Riptide Survivor (Scourge #48)
Scornful Egotist (Scourge #50)
Shield Broker (New Capenna Commander #130)
Stifle (Scourge #52)
Torch Breath (Streets of New Capenna #127)
Voidmage Apprentice (Legions #54)
Vraska, Betrayal's Sting (Phyrexia: All Will Be One #442)
Willbender (Legions #58)
Witness Protection (Streets of New Capenna #66)

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