MANAHIVE

Equivalent cards to Fearsome Werewolf with type Creature — Werewolf, color Red (R), and similar mechanics (Menace, Nightbound):
1. Reckless Stormseeker — Creature — Human Werewolf, Nightbound, and gives haste/menace to another creature.
2. Tovolar, Dire Overlord // Tovolar, The Midnight Scourge — Creature — Human Werewolf/Werewolf, Red, Nightbound, and synergizes with werewolves.
3. Pack'song Pup — Creature — Wolf (not exactly Werewolf, but close Red Nightbound creature.)

There are few exact Werewolf with both Menace and Nightbound in mono-red, but the closest are from recent Innistrad sets. Fearsome Werewolf remains most exact.