Adventures in Helnith: Assault on the Town of Ash (OoC)

[Kareeah_Indaga]

KI, does Less know what Pokemon are commonly found in and around Skybreak City?

Sure, although this isn't an exhaustive list.

Spoiler: Less

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Around:

Rhyhorn
Shinx
Luxio
Twiggin*
Cosmas*
Wythir*
Trapinch
Girafarig
Taillow

In:

Murkrow
Rattata
Grimer (mostly since the war started)

*Denotes a Helnith Pokémon.

Would the pokedex inform me what ability an opposing pokemon would have?

Yes, you can scan it to find that out.