I'm not sure if this will benefit all of you, but I've built a spreadsheet that calculates the spell strength and regeneration rates of your character in the game using your character stats. The link to the file can be found below. I've also included screenshots of the worksheet so you can look to see if it is something you would use before downloading.
All cells are locked with the exception of the few you enter your characters attributes into so there is no chance of accidentally messing up the formulas.
Let me know if you find it useful. I like it for playing around with my stats to see what will happen if X = Y, etc..

Download the spreadsheet here. Download Link Here
v.2014-08-07
-Calculates Yellow Flow Spell Damage
-Calculates Green Flow Spell Damage
-Calculates Heal Spell HP Gain (HP per cast)
-Calculates Armor Spell ARM Gain (ARM per cast)
-Calculates HP Regeneration Time (HP gained every 4 seconds)
-Calculates Mana Regeneration Time (Mana gained every 5 seconds)
v2014-08-08
-Fixed calculation error with Green Flow Spell (thanks joeylamcy)
v2014-08-10
-Now has a drop down for all enemies including enemy stats (Missing stats Shadow Mage and Freya
-New Calculation - Chance of hitting enemy in percentage based on dexterity match and possible die roll
-New Calculation - Damage done to enemy based on die roll (4 or 5 critical)
-New Calculation - Damage done to enemy if non-critical roll (ARM vs DMG)
-New Calculation - Number of hits required to kill enemy IF NO criticals ever rolled (worst case scenario)