The spell Night Fire is level 65, and deals 9 ticks of 335 damage (3015 total) according to the 'clone. However, this is significantly weaker than Funeral Pyre of Kelador which is level 60, does 8 ticks of 600 damage (4800 total), as well as costing less mana. Their casting times and resist mods are identical.
I suspect that somewhere along the line, the damage values of these spells got switched around.