I feel like Isshin, Two Heavens as One might be the better attack + slug/drain/burn Commander, and I think for the hoops to jump through and suboptimal cards it requires, Far Fortune is more of a flavor pick than a power pick
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I think from a pure perspective of power balancing and card quality, no card should have this power for just a single mana in Modern
Despite that, the rules will still be treating them as the exact same card: Eleven, the Mage and Cecily, Haunted Mage are seen as the same game piece as far as "name a card" effects like Pithing Needle or Runed Halo go, and both
Two Most Popular Treasure Commanders According to EDHREC, Prosper, Tome-Bound is the most popular Commander utilizing the Treasure archetype