19 cards where the text includes “ferocious” and (the card is available on Paper) and (the set is “frf” or the set is “ktk”)

Barrage of Boulders (Khans of Tarkir #100)
Crater's Claws (Khans of Tarkir #106)
Dragon Grip (Khans of Tarkir #107)
Feed the Clan (Khans of Tarkir #132)
Flamewake Phoenix (Fate Reforged #100)
Force Away (Khans of Tarkir #40)
Frontier Mastodon (Fate Reforged #130)
Heir of the Wilds (Khans of Tarkir #134)
Icy Blast (Khans of Tarkir #42)
Roar of Challenge (Khans of Tarkir #145)
Savage Punch (Khans of Tarkir #147)
See the Unwritten (Khans of Tarkir #149)
Shamanic Revelation (Fate Reforged #138)
Shaman of the Great Hunt (Fate Reforged #113)
Stubborn Denial (Khans of Tarkir #56)
Temur Battle Rage (Fate Reforged #116)
Whisperer of the Wilds (Fate Reforged #144)
Wild Slash (Fate Reforged #118)
Winds of Qal Sisma (Fate Reforged #147)

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