Once unless you save before you battle him/her and you reset the game
if you mean seeing azelf without it going into your pokedex, 2 or 3. if you mean battling azelf withit going into your pokedex, twice. once when you first battle it in valor cave, and again when you have a rematch [after one week] if you defeated it the first time.p.s. yes, you can battle legendaries (in dpt) twice.
Yes, if you knock out Azelf in Pokémon Black 2, it will not return. Unlike some Legendary Pokémon that can be encountered multiple times, Azelf can only be caught once in the game. If you defeat it, you will need to reset the game or reload a save prior to the battle to encounter it again.
DONT!!!! if you run away from azelf or uxie, youll never battle them again.(unless you have a action replay) if they k.o. you, you can battle them again. if you k.o. them youll never battle them agian.(unless you have a action replay)
You can't battle Azelf unless cheats are used
You can battle him five times
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You battle them like 8 times
No, Azelf will not come back in Pokémon Diamond once you have defeated it in a battle or you have ran from the battle. Mesprit, 1 of the 2 Pokémon that you encounter in a cave, it will flee once you interact with it but you will be able to run into it as you're walking across the region.
you have 2 beat the battle dome 5 times for silver and 10 for gold you have 2 beat the battle dome 5 times for silver and 10 for gold
5 times for silver 10 for gold
you go to all the caves in sinnoh (volar azelf acuity uxie and verity mespirt) and you will see them. battle them a try to catch them .But when you talk to Mespirt he will disappear .he will be roaming around sinnoh.
3 times in a row