I think \"k\" stands for \"kill\". If you have a higk k-factor, you can cast more d34dly sp3llz! Or for \"k3wln355\"

Seriously, it\'ll combine everything in a complicated, page-filling formula, outputting a value called\"k\" for having already used the more creative and descriptive variable names on the other side of the equation.

Therefore, if you\'re a newb, and if the \"butane lighter\" spell is what it sounds like, a lowlevel spell, k will equal to a chance of around 85% of success and also leaving the failures at being max. 25% desasterous (not draining all mana and not doing zero damage to enemy).
If it\'s a high-power spell, k will equal to somewhere of 0.000000000000001% of chance of success, leaving the desaster factor at 99.99999999999999%, with all that goes to mana usage and zero enemy damage.
IMO, k will incorporate
- your arcane lore
- your skill in the relevant way
- your skill in the spell itself
- your health
- your tiredness
- the spell\'s complexity
- the power level you set for the spell
- the time you take to cast the spell (more timr=more concentration=higher chance of success)
- any environmental issues (distraction, etc.)
- glyph pureness (if there are levels and not just \"purte\" and \"impure\"
- a random factor
- my wish (the most important factor

)
k will affect:
- mana drain
- damage to enemy
- damage to you and environment
- look of the spell
However this is just my personal interpretation and the way I believe it would be cool.