Ask Mable for advice

"Mable," said Malamar. "I want a full team of Pokemon. But I have no clue how real Trainers work."

"I can help," said Mable. "You've got a Water-type in Misty, and a Fighting-type in Eri. So the next logical types would be a fire and grass-type."

"Explain," Malamar said.

"A fire water grass core is common on most teams," Mable said. "They cover each other's weaknesses."

"I see," said Malamar. "Then tonight, I'll grab a fire and grass-type!"