While there have been a handful of spells with no mana cost (most with suspenda trend that Modern Horizons 2 continues in earnest), there has never in the history of the game been a "normal" creature with no mana cost
Harvester of Souls is a staple in such lists already, so getting it with a one-mana discount and a built-in sac ability is too good a deal to pass up
This is weak against an opponent with a lot of creatures on the battlefield but allows black to kill some creatures it otherwise would have trouble killing (like creatures with protection from black)
These are special themed 20-card booster packs, based on nearly 500 cards, several being reprints of cards from previous sets, with 121 possible packs available
(We can always change the creative to shift a creature to a new creature type.) That got us to 74 creatures
#1: WHEN TO MULLIGAN Veterans of lightning-fast eternal formats like to joke that the mulligan choice is their early game, but thats not really untrue for them, or for us