There are a lot of other lands in this deck that do similar things to Cavern of Souls, so you could always cut it and replace it with either another dual land or a basic land
Main Collectable Card Games Magic: The Gathering Imperial Edict Imperial Edict Casting Cost: Card Type: Sorcery Card Text: Target opponent chooses a creature he or she controls
Swap it out for Last One Standing or Pernicious Deed to keep Jegantha happy, and add to the decks existing multi-color theme
Because he's evasive himself, it means he can freely trade with smaller characters on the board without the fear of retribution
While that spell allowed for explosive, high-value artifact turns, Nanogene conversion instead foregrounds creature combos and powerful, game-ending swings
This artifact-making value engine of a card used to make waves in Modern, and even though it got a semi-recent reprint in the first Modern Horizons, it's still valued at $53 (all prices from MTGGoldfish)