The original rarity system relied on visual distinction: holofoil patterns, extended artwork, and set numbering
Lastly for the deck, we have Grismold, the Dreadsower, who always felt like a poor imitation of Slimefoot, the Stowaway
My Umori/Old Stickfingers deck is a creature-only deck thats focused on graveyard value
Perhaps even more interestingly, it's got a decent butt to throw in the way of things at 1/2 unlike other mana generating creatures
Moonshadow Remarkable value for just a single black mana, Moonshadow is a 7/7 creature that comes into play with six -1/-1 counters on it, Alternatively, Moonshadow is a great target for Blight counters , as it can simply remove them when you sacrifice other creatures, or lose creatures