Hi, thanks for your answer.
What I understand is that even if I meet all requirements to meet a legendary that I don't already own, on Birth Island, there is still a chance than I don't meet this legendary, and I meet a pseudo-legendary instead ?
If yes, could you give me the probability to meet a pseudo-legendary instead of a legendary ?
Also, this means that in order to catch Entei/Raikou, I'll need to spend all my mysterious tickets until one day, I get them out of luck ?
The wiki (which I know can be wrong sometimes) says : "If the player meets the requirements to meet a legendary, it has 100% chance to spawn [...]" (see screenshot attached)
Thanks !
Capacoupe