>>31890973The in-game ones are pure RNG. You don't need good mons, just good luck, and the strongest faggots killing eachother.
I haven't tried online yet now people actually have good mons (Last I tried on release everyone was level 20 at best while I had my level 50 starter), and I haven't managed to play with friends yet because one of them was a total pussy about losing (he hadn't finished the game yet), and now he isn't, another one simply isn't interested anymore.
Fuck getting 4 players together, I wish it at least had something like triforce heroes when you can just get some random guy from the internet to gang up on.