I think I am closer to the 1/100 mark for 41 card decks in unpowered although it is really hard to judge those low %, I have been tying to keep track since writing this and have not yet made a 41 carder
Product Description Magic the Gathering Final Fantasy Collector Booster Display | 12 Collector Booster Packs Summon legends
The real work starts when you transform it to the saga side
If you do, draw X cards, then put up to X land cards from your hand onto the battlefield tapped, where X is the sacrificed creatures power. Being able to throw away some of your cards for not just extra cards in your hand but also extra land in play is game-winning
I count 29 cards that are either Phyrexian or make Phyrexians, plus 41 cards that either are artifacts, make artifacts (incubate tokens), or care about artifacts
Unable to protect itself without the help of other spells/creatures