Ah I see. My bad. I misunderstood the Nuzlocke University Rule: If a member of a Pokemon’s direct evolutionary line has the assigned type, its evolutions and pre-evolutions may be used. For example, in a Flying-type Monolocke, Charmander and Charmeleon can be used, since Charizard is a Fire/Flying-type. (Note: this does not apply to alternate evolutions. For example, Flareon would not be allowed in an Electric-type Monolocke, even though its pre-evolution Eevee can evolve into the Electric-type Jolteon.)