Mage Fire Pet question

[Frug]

In Classic, the DS of the fire pet did damage about equal to its level; that is a level 4 fire pet had a 4 damage DS.

I've read somewhere (which escapes me) that this spell is no longer being cast by the fire pet - is this the case or is it the same as I remember (or something altogether different?) I couldn't find much information on this on the site, so apologies if I've missed something basic.