[Taqwus]

Might be good to note the various spells/methods for giving a boost in combat, as well.

of note --

Unusual cases (not merely 'pay gems for single-path boost') incl

- communions/sabbath boost broadly and distribute fatigue, and can be done using items
- Summon Earth Power takes no gems, and gives reinvigoration
- Hell Power boosts broadly and strongly, but is risky
- Power of the Spheres boosts broadly, costing a pearl; the crystal shield instead costs enc
- The 'North Star' astral boost boosts ALL astral mages incl. hostiles, as does the corresponding item

The unit AI does not prioritize these spells very highly -- e.g. earth mages do not seem to cast SEP if not scripted to do so, which is a pity given that it's fatigue-only for +1 E and +4 reinvigoration.