If your commander wants to have lightning claws and a jump pack, use the Captain Shrike Of The Raven Guard model, it already has then and is in a good pose. Then just model a cloud of green stuff, of put him on a short flying base and put cotton wool on it.
As for other models, generally use models with jump packs, and put cottom wool on their base (or use more flying bases). Also use lots of Land Speeders. No Tanks or 'heavy models'