Spell Ideas for a Vampire based unit

Im currently creating a map and have made a Vampire hero for it. It already has 2 spells but I cant think of 2 others that a Vampire would have. And yes ive done the life drain/blood sucking one already. So, any suggestions???

maybe it can turn into a bunch of bats and tele over a small distance??? damaging unit it passed thru it?? carrier swarm + blink :)

a spell where it turns into a bat would be nice or turns into alot of little bats for a short period of time

i have done a spell like this, looks pretty funny :p

maybe a spell that bite a unit and transform it into a small vampire

Thanks for all the ideas, I could do the Carrion+Blink thing. I dont think there are any units that look like a bat though, I suppose a gargoyle could be used. Anyway thanks again.