DX this is so confusing

[Black_Shark_dragon]

hey guys
ok.. i dont get this at all... i been in the look out for this legendarys currently 1/6. anyway this blades are curse blades right?! so.. as far i know curse blade are only in tormenta or raven cove. so the only way to get this curse blades legendarys is in those 2 places?

but a dude told me (oh no is only in raven cove) and i was like great... no wonder i did not get anything in tormenta... and then i over read something about that they are all over the place and you can get it anywhere in loots...

>< can someone make it crystal clear for me.. cause i really whant the thunderspine and idk what places to go...