One idea i have you could try out is running a deep sea creatures deck. Run
Gyruda, doom of depths with
wrexial the risen deep, and the new
Zareth San, the trickster. Wrexial steals spells, Zareth steals permanents so both of them give you free reign over another person's graveyard. Run
sire of stagnation and
fathom feeder and you can
exile people's decks while gaining card advantage. A way to finish the table is either mass mill like with the new
maddening cacophony and put their libraries to zero. make them lose life through discarding like with
raiders' wake,
liliana's caress and
fell specter and kill through damage. If you wanna do the
flicker game use the
Thassa, deep-dwelling,
conjurer's closet, and use
hell's caretaker as a means of recursion from your graveyard which is also a way to benefit off those etb triggers. Lastly You could also pull off an alternative win con where you can use
Atemsis, All-seeing since it's also a 6-drop (an even CMC). what are your thoughts on this?