Could the card Rivalry of Warlords go in a blue eyes white dragon deck?
of coarse, lets review the facts all your cards are dragons except The Light – Hex-Sealed Fusion witch if I am not mistaken is used to fuse blue eyes ultimate which can easily be done from your hand using Polymerization or from the grave using dragon’s mirror and the rest of your cards are dragons so you don’t have to sacrifice anything but depending on your opponent he might have to big time and if so it could potentially help you out a lot in a dual take it from a guy with a blue eyes deck probably similar to yours