Beedrill can OHKO Amaura with Rock Smash [Base 90 Atk and x4 effective]. It outspeeds Tyrunt and hits it hard with Rock Smash if it's got Swords Dance; and OHKO's with SD. Beedrill outspeeds Amaura and it doesn't always use Rock Tomb; hence why I said it is risky. Beedrill survives Take Down; and that is all it has to do since it proceeds to outspeed and OHKO everything else. The AI is not exactly great. Especially with the first two GL's. [For example; Viola usually spams Infestation regardless of anything else; be it a x4 resist that Tackle would hit harder or not. Grant tends to use random moves too; but not as badly as Viola.] That's why I said a sweep is a risk. There is a strong chance Amaura will Rock Tomb and either OHKO you or drop your speed so you can't sweep. But Beedrill can easily defeat Amaura at least with Rock Smash; and then deal hefty damage to Tyrunt. I think Carbink is more akin to most of the E pokemon than the D ones personally. It's slow; it's multi-hit KO'ing everything and slow to level. And if it wasn't for Swords Dance Beedrill would easily be E. But Swords Dance and good TM timing make it a bit more useful than things like Sentret.