There was a time where Show and Tell decks were the most feared decks in the format, in fact, they were so good, that many clamored for the banning of Show and Tell itself
There are hundreds of sacrifice cards that are worth including but only a few I see as staples for any aristocrats deck
Both of these formats featured cycling as a primary mechanic, which was heavily featured in each color
You use Wrenns -3 ability to make a 5/5, use that 5/5 to crew the Chariot, and then use the Chariots ability to make another 5/5 during combat
Transforming this flipwalker into Ajani, Nacatl Avenger should be trivial if you build this commander around cats, and that backsides abilities help to buff your board and reset it
Of course, the Black Lotus has reached the millions in value in private sales, but those are also typically graded copies that have been well preserved for years.