Skill Help

When a skill says it does damage ranging from 5-100 say? What is this based on, the level of that atribute as well as your level? Also, I know you gain health when you level up, but what about energy, or Mana?

Easier example....

Damage skill - this skill does 1-13 damage.. (say linked to sword)

For each point you have in your sword attribute ...that damage ratio (1-13) goes up by 1

Example.. attribute 0 gives you one...attribute 1 = 2
attribute 6=7 attribute 12=13... that modifier is the range of your damage in relation to your mastery.

There are also a few skills where the numbers are reversed... (say 20-8)

It will mean just that..for each attribute point that number goes down by one.

mana dosent go up with level just your healtrh, your base mana will always be the same except if you have items to increase it, IE, focus/armor/wands/staves