Building with immolation.

This isn't my area of expertise, so I may be missing something very basic, but I've made a building and given it the immolation spell (only slightly modified so that it would cover the range necessary for the increased size.)

The spell works fine, and units attacking it get burnt to a crisp, but the structure itself doesn't seem to register the immolation buff. It doesn't get the handy tooltip at the bottom of the screen, and the ring of flames effect won't appear.

I've tested it a bit, and the spell works perfectly when applied to units, but there's no getting it to work on the structure. What am I doing wrong?

Buffs on structures don't display. This is because Blizzard hates you. I know the icon at least doesn't display.

There is a game constant, something like "Show status bar for buildings", that will solve your problem ;)

EDIT: the constant is exactly Building - Building Status Display

Or you could just make the specific building a unit that behaves as a building if you don't want other buildings to show buffs.