Here is another one I just saw with a guide video.
video- https://www.youtube.com/watch?v=t_cz-upt44o
sheet- https://docs.google.com/spreadsheets/d/1UzXhDJVYxdWMAb4Y2v0BQjEZFwNWGe92zIN1lB7KjIk/edit#gid=1938119339

Someone could make something similar or ask they guy who made it if its okay to use his work as a template.

I have a sheet that calculates win%, top8%, top8 odds, as well as an arbitrary performance rating per deck. Not sure its as in-depth as something this article calls for, though.

My data is frequently scrawled across multiple digital platforms and physical notepads. If somebody else had such a tool I agree that it would be useful, haha.

I just threw a little something together with excel, if anyone is interested.

The huge number of games I play then gather enough data on each paperstrip to guide me on what to insert or remove from my decks. I’ve been using this on a low scale for years, but have realized that the entire process can build my decks for me, with me just selecting the cards I think the deck needs, and the paperstrips revealing what really works.

This method was slowly developed in the past while I was using computersimulations to fix my mana, and then gradually replaced the computer programs (Because no simulation is good at playing magic).

Originally I wanted info on how individual cards behaved, for example how much damage would raging goblin deal if I always played raging goblin number 1 as the first possible, and raging goblin number 4 as the last. The results were surprising and lead me onto the conclusion that some cards are better as 4 copies than others.

In another setup I wanted to know how much shriekhorn would mill during 4 turn games with a mill-deck, because it potentially mills 6 cards which is the best mill for 1 mana (except for hedron crab.)

Using detailed paperstrips you can gain data on how many cards you’d want to play against virtually anything.