[Nagot Gick Fel]

Originally posted by spirokeat:
How does encumbrance affect it ?

High encumberance (ENC for short) makes your units accumulate fatigue faster. Each unit type has a base ENC. Add to this the extra ENC from armor and you get the unit's melee ENC rating - ie, the amount of fatigue this unit will get each times it performs a normal attack. Similarly, ENC(base) + 2 * ENC(armor) = ENC(spellcasting), ie the extra amount of fatigue this unit will suffer from spellcasting - which is added to the spell fatigue cost. ENC may be increased further because of extreme climatic conditions your unit is not resistant to, or because it's cold-blooded in temperate or cold climate. Moving usually don't cause any fatigue.

Does armour/encumbrance affect spell casting other than reducing the available fatigue pool ?

No.

what kind of fatigue return happens per action turn ?

Below 100 fatigue, nothing bar reinvigoration - be it the effect of an item (eg, Boots of the Messenger), a spell (eg, Summon Earthpower), a blessing (Earth 4+) or an heroic ability.

An unit beyond 100 fatigue gets 5 points back each battle rond (+reinvigoration if any), as long as it remains unconscious.

is there a base recovery per turn that is affected by encumbrance ?

No.

In spell casting skills and gems offer a method of offsetting fatigue, how does that work ?

Magic levels beyond the spell requirements (this applies only to the spell's main path, eg astral for Astral Fires) reduce the spell's fatigue cost. The real fatigue cost of a spell is:

listed_fatigue / (mage_level - spell_level + 1) * (1 + magic_scale_adjustment) + mage_spellcasting_enc

where magic_scale_adjustment varies from -0.3 (magic+3 scale) to +0.3 (drain+3).

(All that is from memory, but I think I got it right).

I have a lvl 3 fire commander who I'm scripting to cast Flame arrows, lvl 3 fire spell, at a cost of 100 fatigue, he has a fire gem in his inventory which is the cost. He wont seem to cast it. Is this a function of the calculations of Fatigue as in a commander cannot force himself unconcious ?

Nope, for some strange reason mages sometimes choose to not cast what they're scripted for, luckily that doesn't happen too often.