11 cards where the name includes “mouth” and the name includes “mouth”

Ashmouth Hound (Jumpstart #290)
Demonlord of Ashmouth (Avacyn Restored #96)
Kilnmouth Dragon (Duel Decks: Knights vs. Dragons #59)
Mouth // Feed (Amonkhet #214)
Mouth of Ronom (Coldsnap #148)
Mouth to Mouth (Unhinged #40)
Neglected Heirloom // Ashmouth Blade (Shadows over Innistrad #260)
Neglected Heirloom // Ashmouth Blade (Shadows over Innistrad #260)
Rustmouth Ogre (Mirrodin #103)
Smoldering Egg // Ashmouth Dragon (Innistrad: Midnight Hunt #159)
Smoldering Egg // Ashmouth Dragon (Innistrad: Midnight Hunt #159)
Stallion of Ashmouth (Shadows over Innistrad #136)
The Mouth of Sauron (The Lord of the Rings: Tales of Middle-earth #216)

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