Anyway, this is a solid blue removal spell that most decks will probably be happy to play at least one of
It wouldnt even need to be a tribal deck for Cavern of Souls to be valuable
Lightning, Lone Commando (Isshin, Two Heavens as One) Isshin, Two Heavens as One is one of the formats strongest aggressive commanders, though it never verges into broken territory like Winota
In early game this is huge because, unlike N, you make sure that you are definitely progressing and see 6 new additional cards from your deck
Oversold Cemetery, Phyrexian Reclamation, and a flipped Journey to Eternity provide a great Reanimation plan, while Eternal Witness and Den Protector can do a handy impression of the old Crush of Tentacles deck from a season ago, the bonus being that we also get to bounce our own Energy makers, too
Reptile/Effect