Well, I kinda left that guys up to you, but while creating the characters I had a certain power that people wouldn't be bored with. While making antai with the god of death, you could touch someone and have their life energy slowly drained, you can summon undead to help you out, you can sense when death is coming, and who it is. Honestly it's up to you guys, but it has to make sense, and it can't cross with the other god's powers. Like death can infect someone with a disease because that would belong to another god, you know? Just stuff like that