Editing Warhammer: Age of Sigmar point systems (section)

===Another Random anon's Points system===
Points = trunc (Wounds x [Expected Damage + Toughness]) + Bravery + Move + (25 x [Wizard Spells])

Basically the idea here is to try and capture the overall effectiveness of a unit in terms of doing damage, staying alive, staying on the board, and generally doing stuff on the board.

Wounds are a model's REAL wounds, not Warscroll Wounds.  Tyrion, for example, gets to dust himself up off the ground when slain the first time on a 2+, and come back with full health 6 wounds.  Thus he has 11 real wounds, not 6 (6 + 6(0.83) = 11).  

Damage is simply the mathematical average of all expected damage for every weapon (ranged and melee). Each point of Rend increases expected wounds done by 16.67%, and vice versa, each point of Rend ignored increases wounds avoided by 16.67%. This could be proven with math but I think it is pretty obvious why this is true. <strike> This is incorrect. The value of rend is heavily dependent on your target's armour save.</strike> No, it is not dependent on save at all.  The value of mortal wounds is highly dependent on armor save.  Rend, by contrast, will always be a flat value increasing the number of expected wounds.  

Behold, proof:

Take -1 Rend value.

A 2+ saves 83% of wounds.  -1 Rend forces the target to roll a 3+.  Now you save 66.67% of all wounds.  The difference? 16.67%

A 3+ saves 66.67% of wounds.  -1 Rend forces the target to roll a 4+.  Now you save 50% of all wounds.  The difference? 16.67%

A 4+ saves 50% of wounds.  -1 Rend forces the target to roll a 5+.  Now you save 33.33% of all wounds.  The difference? 16.67%

A 5+ saves 33.33% of wounds.  -1 Rend forces the target to roll a 6+.  Now you save 16.67% of all wounds.  The difference? 16.67%

A 6+ saves 16.67% of wounds.  -1 Rend negates the target's save.  Now you save 0% of all wounds.  The difference? 16.67%

Thus, the value of -1 Rend is a 16.67% increase in expected wounds.  -2 Rend (turning a 2+ into a 4+, for example, is 33%; Going from 83% wounds saved to 50%).

'''Actually, it doesn't work like that:

A 2+ saves 83% of wounds, that means you get 6 effective wounds for each base wound.  NOT REALLY. a -1 Rend downgrades that to a 3+, where you save only 66.67% of wounds and thus get 3 effective wounds for each base wound.  AGAIN, NO.
A 3+ save is 50% less EHP than a 2+ save, that's why 16.67% isn't really applicable, even though it is the actual difference in avoidance factor.  NO.

^^ I think what you're saying is that for a model with a 2+ save, it takes 6 wounds to cause, statistically, a model to actually take 1 wound after saving throws are made.  With -1 Rend, the model is reduced to a 3+ save and thus it only takes 3 wounds applied to the model to make it statistically take 1 wound.  That is true, but that doesn't have anything to do with Rend, because the pool of wounds is determined BEFORE saves are made.  In other words, there is no situation where a model has to make more or less saving throws because of Rend.  Only the save itself is modified. In actual math, and on the tabletop, the number of wounds caused or avoided via Rend or Ignoring Rend is always 16.67% per point of Rend.

For example, say some Temple Guard cause 12 wounds on a unit with a 4+ save, and the Temple Guard Rend is -1 (not sure what it actually is).  You did not cause 24 wounds "effective" or otherwise.  You still caused 12 wounds.  With a 4+ save, you would expect to actually apply 6 wounds to the unit.  Given the Rend, the 4+ is turned to a 5+ and you would expect to apply 8 wounds.  The value of that Rend is thus 2 wounds.  2/12 = 16.67%.  Similarly, the unit with the 4+ save has the "Ignore -1 Rend" rule, then it avoided 2 wounds it would expect to take otherwise. 

This is the same against a 2+ save.  12 wounds on a 2+ save yields 2 expected wounds actually taken by the model.  Changed to a 3+, that yields 4 expected wounds taken by the model.  The value of that Rend is 2 more wounds.  2/12 = 16.67%.  Thus, the value of Rend is not affected by the target's armor save at all. Rend does not increase or decrease the number of pre-save wounds applied to a unit or model at all.

Thus, the value of -1 Rend is dependent on armor save.  -2 Rend turning a 2+ into a 4+ for example, divides the number of EHP by 3 (getting hit half the time instead of one sixth) or increases damage taken by 300%.'''  WRONG PER THE ABOVE. REND DOES NOT INCREASE THE AMOUNT OF WOUNDS DONE TO THE MODEL/UNIT, ONLY HOW MANY THEY MIGHT BE EXPECTED TO MATHEMATICALLY TAKE AFTER SAVES.

The model's "Toughness" is 7 - True Save Value (model's with no save at all just count as 0).  A model's true save value starts with its Save, but takes into account its ability to avoid Wounds, including mortal wounds.  So a 4+ save that rerolls all failed saves, for example, is mathematically as good as a 2.5+ save, so that model's Save Value would be 7 - 2.5 = 4.5. 

Add flat modifiers for bravery, move distance.

A Wizard that can cast/unbind two spells costs 50 points base before anything else.  A model that could cast/unbind three spells would be 75 points base before anything else.  This is because spells can have enormous impacts on the game.  If the model can't cast/unbind anything, ignore this modifier.

====Pros====
*Takes into account most statistics/elements of the model, seems reasonably accurate
====Cons====
*Takes a lot longer to figure out
*A lot of math involving taking a close look at each model's rules, paying attention to things that increase damage out/reduce damage in
*Cannot account for dealing with mortal wounds.  Mortal wounds are treated the same as any regular wounds but are worth, comparatively, much more against better saves (you'd have to do 3x as many normal wounds against a 3+ save to equal 1 mortal wound).  Thus models that can inflict mortal wounds would be undervalued, perhaps significantly so, depending on the armor values of the opponent that model is attacking (a mortal wound against a - save or 6+ save is basically identical to a regular wound).  
*Why 25 points per spell level?  Totally arbitrary, chosen because that's what going from ML1 to ML2 costs for a Space Marine Librarian.  Just playing around with numbers, it "feels" right, but there's no logic to it.