I used to think Gengar was overrated, but it's actually pretty cool. It doesn't outclass similar Ghost-types for just one move (unlike that piece of s***, Starmie), and its strategies are pretty interesting as well.
Official Crawdaunt of the Pokemon XY Boards and Team Miror Infinity "It's Faaan-daaan-gooo! Breathe the A's in." -Fandango