My Idea is to use this image.
This artifact would give a bonus to creatures in your possession that are considered to of neighboring elements.
based on the info SG provided in General Discussion:
1 If player has Death mark Darkness and Fire gain bonus
2 If player has Darkness mark Death and Earth gain bonus
3 If player has Earth mark Darkness and Time gain bonus
4 If player has Time mark Earth and Gravity gain bonus
5 If player has Gravity mark Time and Water gain bonus
6 If player has Water mark Gravity and Life gain bonus
7 If player has Life mark Water and Light gain bonus
8 If player has Light mark Life and Air gain bonus
9 If player has Air mark Light and Aether gain bonus
10 If player has Aether mark Air and Entropy gain bonus
11 If player has Entropy mark Aether and Fire gain bonus
12 If player has Fire mark Entropy and Death gain bonus
Now the next step is to determine what the bonus should be.