Proposal: Opposition Without Infighting (Trivial)

Someone pointed out that opposition allows infighting between mages of similar inclination. Here is a fix.

If Proposal: Opposition passes, append the following to the spell description for Opposition:

A dark mage may only choose a light mage as the target of Opposition. A light mage may only choose a dark mage as the target of Opposition.

Enacted by Kevan, 22nd Jan. +2 to Orkboi, +1 to Kevan.