Mana Crypt Ditto everything about Sol Ring, but dial it up to 11
Proliferating it will also let you use it as protection for something like Atraxa, Praetors Voice Preston, the Vanisher FromTheShire: Let the Felidar Guardian shenanigans commence
Contents: 15 Magic: The Gathering cards 10 Commons or Uncommons 1 Multicolor, artifact, or land card (common or uncommon) 1 Rare or Mythic Rare 1 Vintage-frame (preM15) or special promo card 1 FutureSightframe card or framed variant 1 Playtest or test card (Convention Edition only)
The only problem with Mount Doom is it costs life to make mana, so you don't really want to draw it early
You could replace the rare dual lands with some common tapped dual lands, and it would still function, but it would be less competitive because we'll have to play off-curve sometimes
Send a message to express your interest