This theme works on three levels: Payoffs (i.e., Judge Magister Gabranth, Al Bhed Salvagers) Sacrifice outlets (i.e., Phantom Train, Namazu Trader, Ahriman) Fodder (Hecteyes, job select equipment, Rufus Shinras poor disposable dog) A good WB deck has a healthy mix of all three, plus lots of strong removal spells like White Auracite and Sephiroth's Intervention
Winter keeps their hand size at bay while filling their graveyard and you can totally take advantage of that
Edge of Eternities is a set that has me as excited for Commons and Uncommons as I usually am for a Modern Horizons set
These give the character unique mechanics to play with
Then with Fire Covenant leave yourself at least one life and pay as much life as your opponent has
Additionally, the archival-safe quality of these sleeves ensures that your cards will be protected from environmental factors like humidity and dust