I know, I know, it is not technically sacrificing a creature, just killing it
Both stories are valid, but they produce very different market dynamics
Paying mana to gain small chunks of life only goes so far

Cranial Extraction Is an Arcane spell Choose a nonland card name and search target players graveyard, hand, and library for all cards with that name and exile them Then that player shuffles Lost Legacy Choose a nonartifact, nonland card name and search target players graveyard, hand, and library for any number of cards with that name and exile them That player shuffles, then draws a card for each card exiled from their hand this way Memoricide Choose a nonland card name and search target players graveyard, hand, and library for any number of cards with that name and exile them Then that player shuffles Necromentia Choose a card name other than a basic land card name and search target opponents graveyard, hand, and library for any number of cards with that name and exile them That player shuffles, then creates a 2/2 black Zombie creature token for each card exiled from their hand this way Achieve Black Enchantment Removal by Teaming Up Playing in black, you have the ability to use a few cards to allow an opponent and yourself to search for a card from your libraries
