Blaze of Glory is an ability learned by Geomancers at level 60 in Final Fantasy XI. It increases the effects of the user's next applicable Geomancy spell, but consumes half of their luopan's HP. The effect disappears after 1 minute has passed or a Geocolure spell has been used, whichever happens first. It can be recast every 10 minutes.
Blaze of glory means an impressive but brief display of strength before expiring, in the way that a fire burns more brightly shortly before burning out.