33 cards where the card types include “goblins” or the text includes “goblins”

Assault on Osgiliath (The Lord of the Rings: Tales of Middle-earth #285)
Battle Cry Goblin (Adventures in the Forgotten Realms #132)
Caterwauling Boggart (Lorwyn #157)
Dralnu's Crusade (Dominaria Remastered #189)
Foothill Guide (Onslaught #29)
Gempalm Incinerator (Dominaria Remastered #122)
Goblin King (Tenth Edition #207)
Goblin Pyromancer (Onslaught #206)
Goblins of the Flarg (Masters Edition #98)
Goblin Trashmaster (Core Set 2019 #144)
Goblin Warchief (Dominaria #130)
Goblin Warrens (Masters Edition IV #123)
Goblin War Strike (Scourge #96)
Hobgoblin Bandit Lord (Adventures in the Forgotten Realms #147)
Krenko, Mob Boss (Ravnica Remastered #114)
Mordor Trebuchet (The Lord of the Rings: Tales of Middle-earth #97)
Munitions Expert (Modern Horizons #209)
Orcish Siegemaster (Tales of Middle-earth Commander #33)
Reckless One (Duel Decks Anthology: Elves vs. Goblins #48)
Rise of the Hobgoblins (Eventide #145)
Rundvelt Hordemaster (Dominaria United #142)
Saruman, the White Hand (Tales of Middle-earth Commander #8)
Skirk Fire Marshal (Duel Decks Anthology: Elves vs. Goblins #50)
Sparksmith (Onslaught #235)
Stenchskipper (Morningtide #79)
Swarming Goblins (Adventures in the Forgotten Realms #162)
The Space Family Goblinson (Unfinity #179)
Tivadar's Crusade (Masters Edition #28)
Volley Veteran (Jumpstart #369)
Voracious Dragon (Duel Decks: Knights vs. Dragons #56)
Wandering Goblins (Conflux #76)
Warg Rider (The Lord of the Rings: Tales of Middle-earth #826)
Warren-Scourge Elf (Lorwyn #241)

This search is finished. Now the real work can begin.