Mantine 226: a Water/Flying Type and a Gold exclusive, so catch two, and try for at least one female to trade to Silver. Mantine levels up slowly, so try using Exp. Share and Lucky Egg. Moveset: Surf, Whirlpool, Waterfall, Wing Attack.
Sent this to my wife after she popped a lucky egg for a mass evolve and end kept getting distracted between evolutions