CHK Legendary Land Cycle Eiganjo Castle Minamo, School at Water's Edge Okina, Temple to the Grandfathers Shinka, the Bloodsoaked Keep Shizo, Death's Storehouse The Champions of Kamigawa legendary lands have virtually no downside in Commander, as long as you dodge non-basic land hate
You end up in a bit of a bind with Phoenix where you want to build your deck with a little more learn to maximize recurring it, but you dont really want to max out on Phoenixes and draw multiples, but also your desired sideboard Lesson count varies a lot depending on whether you draw Retriever Phoenix in a game
The One Ring on turn one isnt just possible, its comparatively easy, and if it resolves then chances are the game is yours
First, it gives you one-third more power to your token army
Each Secret Lair could focus on a particular game or theme for example, one might feature Final Fantasy XIIIs cast (Lightning, et al.), another could highlight Final Fantasy XVs heroes , and perhaps a third could be a fun roundup of iconic Chocobos, Moogles, or Cids from across the series (the possibilities are endless, but the speculation of a 15 different Cids Secret Lair has already made rounds in the community in jest!)