Building a deck is quite a science. You make changes as new cards are released, and the meta evolves all the time. It's hard to tell what specific deck changes helped push you from 4th to 3rd in that last tournament, but with TriomeLab, you can take some of that guesswork off.

The tool begins in your Player Profile. Here, you'll see which commanders you've used in Tournaments, denoted as your Signature Commanders. Click on one of them, and the first thing you'll see is the Events/Wins/Rank, followed by a Performance Trend chart, highlighting how this Commander has performed throughout different tournaments.

Event Photo Scrolling further down shows you your Deck Evolution Timeline. Here, you'll see which cards you added/removed to either the Main Deck or Sideboard, and the results of the change.

Event Photo Was removing Synth Eradicator, Mystic Sanctuary, Power Balance and others the right call? I think so! Or maybe it was simply Double Jump // Flying Kick, which is just a fantastic card for the deck.

In either case, I hope tracking which cards you've added/removed and how it performed afterwards can help take some of that guesswork off your plate.