7th Interportal Tournament of HMM3-OFF: "Earth Magic"

Yes, that's correct. Now the scheme is clear. I would only add the following to the rules: "exiting a battle does not count as replaying the battle." Otherwise, it took me 20 attempts just to get the first glimpse. And I still need to catch it twice more.

Added 2 hours 36 minutes ago

I repeated this battle. It took about 150+ attempts.

That's correct. (10% x 10% x 10%) * n, where n = 6, gives 150+ attempts. If we discard the first attempt, we have a 6% probability, and then it fits within 25.