In Standard, this is more likely to be a pure card advantage engine than a combo piece
The attrition approach also allows you to keep mana up more easily for interaction, should the need arise, allowing you to protect your cards, destroy others, or simply buy time to assemble and cast a winning combination of cards
For example, let's look at all the milling cards in Magic before I showed up at Wizardsthat is, from Alpha through Homelands
If the original creature had a characteristic-defining ability that determined its power and/or toughness, that ability is not copied
Cecil Harvey [Foil] #18 Magic Final Fantasy Through the Ages Keep track of your collection value over time
Its access to interaction across colors, paired with flexible sacrifice effects, allows it to stabilize games and pivot into wins without relying solely on combos