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Self mp + enchant coupled with a normal ravenclaw should work wonders.
Another cheap option is to get a 5os long bow and fill them with 5*perfect topaz. Gives 5-200 lightning damage from level 18.
Imo the best alterative to a .09 ravenclaw is respecs. Spend your points from the start in something that works well in normal. Most classes have something. Once you beat normal and have levelled a bit at baal, just reskill to what you really want to do.
Envy gear is what I mostly used until I could pick up the raven. I wouldn't really say this is an alternative to the raven because it lacks the aoe.
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