Greater Good Greater Good is an enchantment that offers its owner to sacrifice creatures in exchange for cards equal to its power
One of the most famous creatures with MTG Shroud in MTG lore is the Elder Dragon Palladia-Mors
Its hybrid identity as both a midrange deck and a combo deck allows it to attack from multiple angles that make it difficult for many decks to defend from
Karlach, Fury of Avernus (65k, prerelease foil $37) City on Fire (72k, FEA $7) Stranglehold (12k, Judge foil $8) Thrill of Possibility (228k, Mystical Archive 50) Dolmen Gate (38k, Lorwyn pack foil $120) City on Fire feels like it should have gotten there, but Karlach being in so many decks is a testament to the awesome ability to gain a second combat, with first strike added, for no cost beyond her own
This might affect their rarity, even if the card is functionally the same