No advantage (Makana's Slowpoke)

(Well, the good thing about this Pokemon is that it's, well, "slow", so at least you get the first hit. This is why advantage is important, in case you get tricky Trainers. Because you did not have the advantage, Slowpoke gives you quite a hard time forcing your Pokemon to sleep and may cause them some Confusion. With a bit of luck and power, Slowpoke goes down.)

"I'm sad that you wounded my pride, it's usually harder than diamonds," he says regrettably before handing you $952.

"Good battle," he says to you, "I think you deserve to try this Red Card, my strong friend!" (You obtained a Red Card!)

"Hopefully you understood what the Red Card does. You will later find other Trainers like me in Alola searching for strength. Challenging people like me wouldn't be a bad reason for adventure."

(And here is what the Red Card does: When the holder is hit by an attack, the attacker is removed from battle.)