This is the Element System that exists in my fanfic, Kingdom Hearts Betwix And Between.
The green arrows show the effectiveness and the red arrows the ineffectiveness.
The black arrows show the combination of both Light and Darkness in harmony,
which creates Twilight and in disorder which creates Nothingness (Void).
Both Space and Time are Elements not effective or ineffective against anything,
those are the Elements holding everything together.
All of these icons will appear in my Spellbook as well.
If there are any questions, feel free to ask!
Kingdom Hearts Betwix And Between and this Element System belong to me!