49 cards where the text matches the regex /\b(orc|orcs)\b/

A-Orcish Bowmasters (The Lord of the Rings: Tales of Middle-earth #A-103)
Assault on Osgiliath (The Lord of the Rings: Tales of Middle-earth #285)
Barad-dûr (The Lord of the Rings: Tales of Middle-earth #253)
Book of Mazarbul (The Lord of the Rings: Tales of Middle-earth #116)
Brassclaw Orcs (Masters Edition II #119)
Corsairs of Umbar (Tales of Middle-earth Commander #19)
Deceive the Messenger (The Lord of the Rings: Tales of Middle-earth #47)
Dunland Crebain (The Lord of the Rings: Tales of Middle-earth #82)
Dwarven Soldier (Masters Edition #92)
Easterling Vanguard (The Lord of the Rings: Tales of Middle-earth #83)
East-Mark Cavalier (The Lord of the Rings: Tales of Middle-earth #9)
Fall of Cair Andros (The Lord of the Rings: Tales of Middle-earth #124)
Foray of Orcs (The Lord of the Rings: Tales of Middle-earth #128)
Gorbag of Minas Morgul (The Lord of the Rings: Tales of Middle-earth #86)
Gothmog, Morgul Lieutenant (The Lord of the Rings: Tales of Middle-earth #87)
Gríma Wormtongue (The Lord of the Rings: Tales of Middle-earth #88)
Grishnákh, Brash Instigator (The Lord of the Rings: Tales of Middle-earth #134)
Ironclaw Orcs (Masters Edition II #132)
March from the Black Gate (The Lord of the Rings: Tales of Middle-earth #94)
Mauhúr, Uruk-hai Captain (The Lord of the Rings: Tales of Middle-earth #214)
Mordor Muster (The Lord of the Rings: Tales of Middle-earth #96)
Mordor Trebuchet (The Lord of the Rings: Tales of Middle-earth #97)
Moria Marauder (The Lord of the Rings: Tales of Middle-earth #138)
Moria Scavenger (Tales of Middle-earth Commander #63)
Olog-hai Crusher (The Lord of the Rings: Tales of Middle-earth #140)
Orc General (Masters Edition II #137)
Orcish Bowmasters (The Lord of the Rings: Tales of Middle-earth #103)
Orcish Captain (Masters Edition II #139)
Orcish Medicine (The Lord of the Rings: Tales of Middle-earth #104)
Orcish Siegemaster (Tales of Middle-earth Commander #33)
Raiding Party (Fallen Empires #64)
Rush the Room (The Lord of the Rings: Tales of Middle-earth #147)
Saruman's Trickery (The Lord of the Rings: Tales of Middle-earth #68)
Saruman the White (The Lord of the Rings: Tales of Middle-earth #67)
Saruman, the White Hand (Tales of Middle-earth Commander #8)
Sauron, Lord of the Rings (Tales of Middle-earth Commander #4)
Sauron, the Dark Lord (The Lord of the Rings: Tales of Middle-earth #224)
Shagrat, Loot Bearer (The Lord of the Rings: Tales of Middle-earth #228)
Snarling Warg (The Lord of the Rings: Tales of Middle-earth #109)
Sting, the Glinting Dagger (The Lord of the Rings: Tales of Middle-earth #250)
Summons of Saruman (Tales of Middle-earth Commander #70)
Surrounded by Orcs (The Lord of the Rings: Tales of Middle-earth #73)
Swarming of Moria (The Lord of the Rings: Tales of Middle-earth #150)
The Mouth of Sauron (The Lord of the Rings: Tales of Middle-earth #216)
The Torment of Gollum (The Lord of the Rings: Tales of Middle-earth #110)
Treason of Isengard (The Lord of the Rings: Tales of Middle-earth #74)
Uglúk of the White Hand (The Lord of the Rings: Tales of Middle-earth #235)
Warbeast of Gorgoroth (The Lord of the Rings: Tales of Middle-earth #152)
Warg Rider (The Lord of the Rings: Tales of Middle-earth #826)

Their mind whirled with grand plans, never thinking of what might happen if they got to the end of the list.