While some cards have dropped in value as time and power creep hit (Exalted Angel would have been #1 on this list for years after their release, with Bane #2) Bane of the Living has actually gotten better
Though it forces you to skip your draw step, you can essentially draw out your whole deck with Necropotence on the battlefield
As you get to later rounds, you have a few vanilla cards with big stats
The Slumlord creates a black rat token with its passive ability when a non-token creature dies and gives all rats deathtouch
Quick Sliver Commander Masters, Common Flash creatures are always useful, allowing you to do things like play around sorcery-speed removal, get into mind games with your opponents, or otherwise thwart their plans with a bunch of open mana
Provided you can keep creatures entering the battlefield, such as by pulling them out of your graveyard, you could be making lots of Food tokens