This deck is simply to be used for fun. It's a single-print deck, so don't get your hopes up with too many summoning combo's.
Primarily, the main strategy you want with this deck is to ensure Dark Magician the Dragon Knight and Eternal Soul are both out on the field at the same time.
For extra insurance, you can also throw in Magician's Left & Right Hand's, or simply Secret Village of the Spellcasters.
It's nothing too special. Got me a few wins here and there, but overall it's as casual as casual can be.
Feel free to tweak it as you desire.