Children of the Divine Order
Fertility magic has probably the most limited usefulness there is, at least in modern times. It can effect all plants and animals, including humans and even supernatural creatures.
Fertility magic can be used to do things like allowing crops to flourish in a desert. Or to enhance the fertility of cattle to provide more food. It can also be used to hinder the fertility of enemy crops and cattle reducing their supplies.
Create an Advantage
Fertility magic can be used to create advantages related to fertility, both positive and negative like: ‘Increased fertility’, ‘Decreased fertility’.
Fertility magic cannot be used to attack.
Fertility magic cannot be used to defend.