Dogmatika Shaddoll Invoked variant to utilize Maximus. I feel that at this stage of the meta most decks have stopped running answers to Maximus in the extra deck, so utilizing it properly can be an absolute hose vs some decks.
Super poly is backbreaking for breaking boards. Starving Venom Fusion Dragon being the target vs Dragon link and Dragoon decks, Raidjin vs Simorgh if it comes up, Augoeides for the mirror, and Shekhinaga vs the decks that spam earth - zoodiac especially
Lyna lets you extend shaddoll lines where you have 1 shaddoll and magistus to give you a useful link to link off your ariel and construct for, both lets construct add schism, de-clogs your board and searches ecclesia for if needed
Hand traps of choice are Droll & Lock - it's endss turns vs ther best decks - and ash blossom - always applicable. Called by the grave protects your own plays, and a single Fleurdelis give negation power from hand traps, and can be hard to play around even if you know they are there.
Only 2 prosperity as i find it Bricky in multiples as you really cannot afford to spend 9+ extra deck monsters, but finding the card selection is still very good.
Sideboard is very generic, nothing special or techy in it.