Attributes maths

Hi,

I'm new to Dota 2 and wanted to make a spreadsheet, so I can see numbers and all that jazz, myself and work out builds on my own. However, it would appear that i suck at basic math and wanted to see if I'm missing something.

While working out stats, the numbers don't add up. Numbers have been taken from http://www.playdota.com/mechanics/Attributes.
So with that in mind lets take Abaddon for example. http://www.dota2.com/hero/Abaddon/

He's got 21 INT so that's easy, 21*13=273 mana. That adds up according to his char page.
Now, I work it out as every level. Abaddon will gain 2 INT. So 25 levels * 2 INT = 50. add this to his base = 71

71 * 13 = 923 Mana. But if we look at his char page. At level 25 it states he has 1157 Mana.

Where have i gone wrong? or am i a complete ******?

Sorry if the way i have explained it sounds condescending, I just wanted to tell it how I'm working it out in my head. If you can enlighten me I would be very appreciative.

All the best

REN

You're forgetting that he skills 10 levels of stats to get to level 25. So add 10*2*13 = 260 mana.

But actually he goes up 24 levels not 25 because he starts at level 1 not level 0, so subtract 2 INT.

So you forgot 234 mana.

Ah, I see. Thank you.

So when working out I need to add 9 levels worth of stats specific leveling. Would that be across the board for all characters? or are they all different.

Cheers REN

It's 10 levels worth of stats specific leveling, each of which add two to each stat. In addition, each time a character goes up a level (24 times) you take into account their natural attribute growth. Add those two factors to their base attribute and you should get your total.

Is that clear? I really hope that's clear.

Not all characters skills stats. ( Invoker)

Is Invoker the only exception, though? I think he might be the only exception.

He is.