Even if you only use this land to push your commander though, Cavern of Souls is completely worth running in every Commander deck
Merlin could singlehandedly bolster any deck running Sapphire, and will most certainly replace the other Floodborn character of the same cost, Gaston Intellectual Powerhouse
8 Rival, Champion, Gym Leader After trouncing the Elite 4 before the player arrives, Blue takes over the Indigo League's Champion title, acting as the first Champion players battle in the series
Ghost Sister & Spooky Dogwood Ghost Sister & Spooky Dogwood Attribute: WATER Level: Level 3 Type: Zombie/Tuner/Effect ATK/DEF: 0/1800 Points: 3 During either turn, except the End Phase (Quick Effect): You can discard this card
Itll either be a card thats super powerful, and played in any deck that it vaguely fits, or will fade away in a couple of months (anyone remember Bootlegger's Stash