Ghostfire Challenge

I made a creature recently that got me thinking: What kind of cool cards would fit in the theme of the Ghostfire spell? http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=136044

I've made two creatures total with the theme / concept used in relation, just curious what you all could come up with!

Here are my designs:
http://mtgcardsmith.com/view/ghostfire-corpse
http://mtgcardsmith.com/view/ghostfire-wanderer-1?list=user
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