The deck adds the unchained engine to play through shifter and nib better. Unchained ignores shifter cuz they only need to be destroyed to proc, letting you end on a few interrupts under the banish clause without banishing a bunch of important resources. While there are solid points to nib the usual combo, you can now just hold engraver's revival effect and then make sequence-> desirae on the crackback.
Agnusdei and Lacrima kind of seal the deal by allowing you to play graveyard volley ball with any of your musketeers or desirae by using Lacrima to revive agnus, then using Lacrima's effect to revive non link light fiend of choice at any point of the opp's turn. Of course it needs setup, but once it is, nib and board breakers don't matter. Bystials and d.d crow banishing targets do though, making something like ghost belle a viable consideration.
one new 2 card combo line lets you end on caesar, chamber, caspar with last stand + a search, and desirae with lacrima/ Agnusdei set up. Basically it adds an omni negate on top of caesar, rage-> s:p and a double caspar search (ie cross domination + last stand). You go from 6 interrupts to 9. (second caspar search, desirae, and desirae's grave effect). All thanks to the new cards.
As usual, there are 12 free slots. Ash, imperm and droplets hits the most things, but you can swap them out for triple tactic cards, or other handtraps. Into the vrains is a volatile card that can let you pierce the board with impunity, so at worst side it if you plan to go first. Side deck can be tailored to your area, but i just chose high impact cards.