Challenge: take a type, make a team of pokemon that aren't that type but can represent it. It can be a be a bit of a reach as long as you can explain it. It doesn't necessarily have to make a full team, but let's say 3 to 4 minimum.

Examples being Flygon and Drapion on a Bug team, Gyrados on a dragon team, Gourgeist on a Fire team, etc etc.