Minimum stats are calculated with 0 EVs, IVs of 0, and a hindering nature, if applicable.
Maximum stats are calculated with 252 EVs, IVs of 31, and a helpful nature, if applicable.
– Suggested moveset
Stealth Rock allows Azelf to damage other Pokémon, which means that it can support its teammates. Taunt means that Azelf can stop Pokémon from using their entry hazards, status moves and more. Flamethrower gets rid of those annoying Steel and Grass types, which means that Azelf is well defended. You can use Fire Blast instead of Flamethrower, but be aware that Fire Blast is not very accurate. Dazzling Gleam lets Azelf easily take out Dark type Pokémon.
If you can catch Azelf, I suggest that you try it out, as it is a pretty good legendary Pokémon!