MANAHIVE

Equivalent cards to Ironfang (Creature — Werewolf, Red, First strike, Daybound/Nightbound-style transform):
1. Kruin Outlaw – Red, Creature — Human Rogue Werewolf, First strike, transforms into Terror of Kruin Pass.
2. Reckless Waif – Red, Creature — Human Rogue Werewolf, transforms into Merciless Predator.
3. Village Ironsmith – Red, Creature — Human Werewolf, First strike, transforms into Ironfang.

These cards all share the Werewolf subtype, are red, and have the transform mechanic with conditions based on spells cast. Kruin Outlaw is closest, as it has first strike and transforms similarly.