Whoa, wait... they hold the card game as a canon source? Trading Card Games based on an anime/video game should NEVER be counted as canon... Pokemon is proof of this, claiming Tail Whip deals damage.
Did the first Digimon World game exist before Adventure? I thought it was made afterwards...
Didn't the V-Pet and V-Tamer Manga come first? I really need to know where to get the lore for this stuff.
But yeah... I like how the Card Game groups things, but I don't hold it exactly canon.
The basic things that I believe in for the series are these:
--Digimon have an endless cycle of birth/life/death/reformatting(reincarnation).
--Even if a digimon absorbs the data from another, when that digimon dies, the absorbed data is released and the absorbed digimon's reformatting begins.
--If left to a natural cycle without interference from others, the cycle will NEVER end.
--When Reformatting happens, the digimon isn't always the same afterwards. Different things could be changed about it, such as personality, loss of memory, a redistribution of power, etc... Typically, however, it will reformat into the same family.
--There are 10 elements in the digital world. Most digimon are strong to one, and weak to another. Some even have attacks of differing types. Typically, though, different types usually have the same element attack type. Example: Dragons with fire, Insects with Lightning, Angels with Light, etc... THERE ARE EXCEPTIONS, however.
--Split evolution exists. Examples are Agumon with the Greymon and GeoGreymon paths, and Plotmon with the Tailmon and BlackTailmon paths. Most digimon families have split paths originating from the BabyII (in-training) form or higher.
--Though rare, it IS possible for a digimon to evolve from one stage to a different digimon of the same stage. In such cases, it is shifting to a different evolutionary path. This is called Slide Evolution. An example is a Greymon slide evolving to a GeoGreymon. It's simply changing the path and attack types. However, no real change in power occurs. It may have gone through an evolutionary change, but it's still the same evolutionary level.
--Good and Evil is NOT determined by digimon race, element, or whatever. It is determined by the individual. There ARE such things and evil Angemon and good Devimon. However, due to stereotyping, most people assume Angemon are inherently good, and Devimon are inherently evil.
--Typically, evolution is a slow process, but if CAN be sped up by a destined child ('digidestined'). The mark of a destined child is their Digivice.
Those things seem to be static more or less.
However, there are also Dynamic functions.
--The God/Admin of the Digital World, Yggdrasil
--The existence of various groups (this means that in some digital worlds, some exist, in others, others exist)
--Human/Digimon hybrid possibility (such as in Tamers and Frontier)
--Existence of worlds OTHER than the Digital and Human worlds.
--Stability of the Digital World due to Super-Ultimates***
There are others, but I can't think of them at the moment.
***Note: Unless another canon confirms the instability thing, I'll have this listed under dynamic, since we don't know enough about them.