Characters.md

 ## Atributes
 Attributes define how a character is in its nature. These statistics are not supposed to change a lot during a character life. They are the only statistics that are transmitted through genetics.
 
-*Abilities generation*: 3 best of 4d6
+### Abilities generation
+* `standard`: 3 best of 4d6 - __Implemented but not used__
+* `classic`: 3d6 - _Not implemented_
+* `heroic`: 2d6+6 - _Not implemented_
+* `dice pool`: 24d6 or 28d6 total, each attribute 3d6 min - _Not implemented_
+* `purchase`: 10-__15__-20-25 value points __Implemented and default__
+
+__Cost table__
+
+|Attribute|Cost|
+|--------:|---:|
+|        7|  -4|
+|        8|  -2|
+|        9|  -1|
+|       10|   0|
+|       11|   1|
+|       12|   3|
+|       13|   5|
+|       14|   7|
+|       15|  10|
+|       16|  13|
+|       17|  17|
 
 ### Strength `STR`
 Measure physical power.