Seal of Fertility

This seal is placed on Pets and Employees of Tiamat's Hoard; and is placed above the crotch (can be made visible or not)

Simply put, it allows Nyx to control the fertility of seal bearer. The main purpose for this is so her employee aren't constantly preggers, or her pets.

Only Nyx can remove it, as it is also Blood Magic, but she will freely remove it for employees if they so wish it, if they wish to start a family.

Other powers include:
Allow Nyx to control a character's Heat cycle (for furries, scalies, or demi-humans)
Allow Nyx to force a heat cycle
Allow Bearer to lay eggs (both fertile and unfertile)