Only you can make a judgment on how much value there is in these for yourself, but its worth noting that since Lorwyn Eclipsed, these arent included
You can also use cards like Ram Through to push Omanths damage through or equipment like Forebears Blade to give it trample Purphoros, God of the Forge & Arasta of the Endless Web There are plenty of wild things you can do with Purphoros, God of the Forge which can help whittle your opponents life totals away
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Reverse the Sands: Now, this is a fun decision to make
This was especially true in Commander, where the lack of sideboards meant the mechanical pairing didn't work, and the Lessons were too weak and under-supported to justify playing
Cards that make tokens on deaths are very useful, especially in the colors of Felisa, Fang of Silverquill, Open the Graves, Siege Veteran, and Teysa, Orzhov Scion