In HeartGold, I accidentally poisoned it and it fainted. Does it come back at the burnt tower like some of the other legendaries?
Yes & like all other legendary pokemon beat the elite 4 to rematch any legendary pokemon you ran from, defeated, defeated you or if it fled.
How to change your username
How to add a user avatar
Why was my post hidden?
Flags vs Downvotes
Official PokemonDb League
Type a Pokemon name, type, move or ability to see instant results.