The Sixth Man

[Demon Trainer]

It looks like a lot of us are having trouble filling that sixth little slot on are team. I like to call it the wildcard slot. Im also having trouble filling this slot. My team so far seems pretty strong and i like how it works but it seems ont he Elite 4 i always use just my Blaziken and Kyogre. Im still looking for a sixth one maybe just for variety? Well heres my team so far.

Blaziken Lv68
Kyogre Lv66
Grumpig Lv66
Raichu Lv61
Altaria Lv54
Breloom Lv46

Now this is my little wildcard box where i keep the pokemon i was hoping to fit into my team, seeing as i really dont know what im missing.

Heracross Lv35 (Dark Killer)
Flygon Lv51 (Just a ground)
Metang Lv41 (Crazy looking guy)
Spheal Lv28

Whats good to fill in that slot? What type seems to be missing? Im open to all suggestions!

[Gligar_Man]

heracross

[Demon Trainer]

but he cant really only beat dark flying will murder him

[Demon Trainer]

$$

[The Muffin Man]

...wha...?