Sanguine Bond is an essential include in any lifegain deck with access to black, and if you dont have access to black in your lifegain deck, I strongly recommend you reconsider just to run Sanguine Bond
All the other top end stuff is really good but they don't say win the game in the way that this does
Yata Garasu was forbidden for years, and for good reason
Forbidden and Limited list is a semi-limit to the decks primary searcher Air Lifter, Diabellstar has been introduced as a way to improve consistency in the deck and offer an easy-to-summon strong monster into the mix for turns where going into the decks main combos may not be viable due to the cards availability
This particular deck once again makes use of summoning the Dark Magician through various means (Soul Servant, Eternal Soul) but rather also utilizes other cards to compensate for various situations
Optimizing a set for casual play is often a nebulous task that I personally find very challenging, so I was thrilled to have someone who understood FINAL FANTASY fans leading the process