23 cards where (the text includes “as long as ~ is equipped” or the text includes “equipped creatures”)

A-Armory Veteran (Adventures in the Forgotten Realms #A-130)
A-Dwarfhold Champion (Adventures in the Forgotten Realms #A-14)
Akiri, Fearless Voyager (Commander Masters #335)
Armory Veteran (Adventures in the Forgotten Realms #130)
Auriok Glaivemaster (Darksteel #1)
Auriok Steelshaper (Mirrodin #4)
Dalakos, Crafter of Wonders (Theros Beyond Death #212)
Dwarfhold Champion (Adventures in the Forgotten Realms #14)
Enkira, Hostile Scavenger (Universes Within #20)
Fireblade Charger (Zendikar Rising #139)
Grusilda, Monster Masher (Unstable #132)
Jor Kadeen, First Goldwarden (Phyrexia: All Will Be One #203)
Kemba, Kha Enduring (Phyrexia: All Will Be One #19)
Kitesail Apprentice (Worldwake #10)
Kor Duelist (Modern Masters 2015 #22)
Leonin Den-Guard (Mirrodin #9)
Leonin Lightbringer (Phyrexia: All Will Be One #20)
Raksha Golden Cub (Commander 2017 #69)
Resistance Reunited (Phyrexia: All Will Be One #31)
Skyhunter Cub (Mirrodin #21)
Stone Haven Outfitter (Oath of the Gatewatch #37)
Sunspear Shikari (Commander Masters #62)
Zamriel, Seraph of Steel (Game Night: Free-for-All #1)

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