Numbers
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One of the three axis of magic (along with Erf and Fate used to break a major class of magic into its different disciplines.
Parson's mathamancy gauntlet is aligned with the Numbers axis.
Not much is known about Numbers, except that:
Foolamancy may be used to 'veil' units, cities, etc.
Mathamancy may be used to calculate odds.
Moneymancy is involved in unit production for natural allies.