My goofy glacier-fast advance kingmaking jank. This deck ate it pretty hard in swiss with just enough wins to get up to the cut, and actually was my only win in the cut, which was just a matter of grinding sable down to 1 run per turn, as this deck can do.
Ideally, you use KPI to score and stack an ice, so you get your embeddeds scored early for little money, then push to kingmaking with a +1 guest to close out.
What actually happens is you find a way to get to 5 and the runner digs in their heels 1 turn, then runs you into the ground for the rest of the game. I routinely would have 3+ ranks of ice, typically even rezzed, and runners can still manage 1 run per turn to prevent you from closing until twinning eats your last few agendas. You can mitigate this some by drawing a lot more and defending HQ a bit more than RnD, but it doesn't work broadly. I guess you could be a swine and run 1-2 scapenet.
1-1-1 in swiss, then 1-0 in the cut. Just play the red level version, the moon pool version, or if you want a positive winrate, play the kill variations until everyone is on full tech.
Also piranhas kinda sucks in most cases. As shaper rises it gets much worse too.