Arctic Armor and Mana Regen: Something doesn't add up

I notice you have Inner Force.

Inner Force will increase the mana consumed both stationary and moving by 30%, as well as increase the amount of damage mitigated by 30%.

So it is actually draining (21.8*1.3 = 28.3) + (109.2*1.3 = 142) = 170.3 mana/second, excuse the rounding.

Edit: Above is the intended mechanic, after further investigating it has been discovered there is a bug with the skill, where Inner Force is ONLY applying to the stationary mana drained per second value. Mark's post explains further on the second page.

Arctic Armour puts a buff on you. This buff provides four stats:
1) Flat Physical Damage reduction
2) Flat Fire Damage reduction
3) Mana Degen
4) Additional Mana Degen while moving

That's not four different buffs/debuffs, it's a buff with four stats. It's considered a buff as opposed to a debuff because it's overall positive to you and is something you chose to apply to yourself that you can turn off at any time.

Because it's a buff, Inner force affects it, increasing all it's stats. There is no way for inner force to distinguish between a positive and negative stat, as pretty much any stat could be positive or negative in certain situations at certain values. Inner force simply sees you gaining stats from a buff, and increases them.


UPDATE: Found the discrepancy! My description was partially wrong.

Arctic Armour actually involves two effects. It applies a buff, which has three stats:
1) Flat Physical Damage reduction
2) Flat Fire Damage reduction
3) Mana Degen

That's one buff, and affected by inner force as described above.

When you begin moving, it adds a second, invisible effect, which has one stat:
1) Mana Degen
This is removed again when you stop moving.
This is an invisible, background effect, so Inner force doesn't count it as a buff (it affects buffs in the sense of things giving buff icons), and thus is not affected, while the base mana drain, being part of the buff, is.

That's fairly unintuitive and in terms of this skill, inconsistent, so I'll be looking at ways to improve this in future.

The issue was found and the new explanation for the mana issues has been identified, read the editted post Mark has submitted for a better and more accurate explanation of how it is working!

Hopefully that clears everything up.

Inner force never affects costs or reservations, as they are not an effect of the buff, they're what you pay to cause the buff.

The mana drain/degen from Arctic armour is not a cost, and is not a reservation. It is an effect of having the buff on you, just like the burning from righteous fire.

Because it isn't an aura and isn't intended to work like them. Auras reserve mana because they are explicitly intended to be things you have 'always on'.

Arctic Armour, like Righteous Fire, is explicitly not intended to always be on. Having it on uses up a resource, so you need to either put significant effort into managing that resource, or not have it constantly active.

Plus the game would be boring if everything worked the same.