By unconventional, I meant rarely seen in tournament play; the champions went into the lanes I'd expect, but I never expected to see those champions played in the World Finals.
I went back and looked at the European regionals, the NA regionals, and MLG Raleigh. Exactly one Eve sighting and that's it.
I remember when, I think it was TSM, broke out Zilean in a match, but it's been a really long time.