most powerful mtg cards of all time Valuable Rare What are the most powerful

The only deck that I'm particularly excited to run Elder Gargaroth is Beast Tribal, a tribe that still waits to be fully fleshed out

You can lean into a sacrifice theme, running the Scam cards from Modern decks like Fake Your Own Death and Undying Evil to return cards sacrificed for value with Ashnod's Altar (or similar cards)

Rite of Replication or Myojin of Cryptic Dreams can get you there unconditionally in one card, while Echoing Equation and Mirrorweave are more battlefield-dependent

It looks hauntingly serene

The scry lands are fairly cheap and would be a great swap for some of the basics

Some cards have direct correlation to the mythos, as detailed here