Spell Vamp on Syndra?

Since Syndra is a high burst AP (actually just spam combo and you've slain an enemy) and spams her spells would spell vamp work well on her with an item like WoTA? Syndra's squishy so I thought that it would make sense to get WoTA.

For the build i was thinking that it would be: Zhonya's, Deathcap, Sorc shoes, Void Staff, Athene's, and WoTA (not in that order).