#8 Staff of Eden, Vaults Key Staff of Eden, Vaults Key is deceptively powerful at least, in Commander
The Final Fantasy crossover sets also introduced several strong legendary knight creatures, many of which make great commanders
Faithless Looting And for the best red piece of card draw in Magic, we have [c]Faithless Looting[/c]
The first is the Standard-release set D&D: Adventures in the Forgotten Realms
Venser also makes random other cards way stronger, like Nasty End sacrifice The Hollow to draw 3 cards for 2 mana, Vat of Rebirth gets loaded with oil as The Hollow dies, or Ringsight to give Venser skulk so we can bypass blockers while tutoring up a card
Milling random cards will give pseudo card quality or card advantage, or it can be a mana saving too