Notably, you can't discard or cast any of the cards you draw to try to rig the results of the random discard
Mega Venusaur ex takes 20 additional damage from Fire-type attacks
Just stick with me) This card is actually almost too narrow to make this list
Honorable Mentions: Many, Many Mana Rocks Commander decks are chock-full of mana rocks it's not too far of a stretch to say that its deck-building rules are all decks must include one commander, one Sol Ring, one Arcane Signet, and 97 other cards. For that reason, with just a couple of exceptions, I'll leave mana rocks out of this ranking
Now that I have thought about it a few days, I think Solitude is clearly the better of the two, since it is not only a premium removal spell but also a viable win condition with its 3/2 body