Design Notes: This a new concept inspired by some of new mechanics like ind D&D 5e and CoC 7e, where the GM tells the players they have advantage or disadvantage based on the situation.
Advantage: Wild Die is a d8
Disadvantage: Wild Die is a d4
I am not sure how much of a advantage this is because they have a 1 in 8 chance of exploding in the former and 1 in 4 chance in the latter.
Advantage: Wild Die Explodes on a 5 and 6
Disadvantage: Wild Die does not explode
Advantage: Wild Die -dX
Disadvantage: Wild Die +dX
dX can be a d4, d8, d10, d12 depending on the situation. These dice do explode as well.