The new Witchcrafter fusion, Vice-Master, is a really strong boss monster that gives Witchcrafter a lot of the offensive pressure they lacked, allowing you to routinely end on not just her but also at least one of the other two boss monsters Witchcrafter has, but sadly the fusion spell that accompanies her is much less than ideal. Thankfully, you have much better options. Both Branded Fusion and Magicalized Fusion allow you to go into your boss monster as long as you've drawn one Witchcrafter name or Magicians' Souls. Branded Fusion also serves as a plan B if you don't have any Witchcrafter names, allowing you to send the materials for Lubellion, make Mirrorjade and have a guaranteed way to make Vice-Master on your next turn by searching Branded Fusion with Albion's grave effect.
For me the main reason to play this deck is the interaction between Spell Chronicle and Patronus's grave effect, which allows you to add 5 Witchcrafter spells from the deck to your hand. To make this easier, I'm playing Foolish Burial Goods, which also gives you access to Genni on your opponent's turn with Witchcrafter Masterpiece and can put a Witchcrafter spell into rotation.