Normal Nuzlocke Ruleset:
1. Fainting = Death
2. Can only catch Steel Type Pokémon (Species Clause); This includes Pokémon that evolve INTO Steel types, but does NOT include non-Steel Pokémon that evolved from Steel types!
3. Nickname Pokémon
Hardcore Nuzlocke Ruleset:
4. No items in battle (held items okay)
5. No leveling past the next gym leader/E4's ace (at the START of the battle)
6. Play on manual "Set" battle mode