A rare card thats also a playset staple in a popular format has extreme value
So having some combo synergies helps make the commanders work, especially with ETBs and graveyard effects as with Silas Renn, Seeker Adept
Here are a handful of inexpensive equipment with triggered abilities that will help the deck function: Explorer's Scope, Goldvein Pick, Greatsword of Tyr, Rogue's Gloves and Quietus Spike
If you're planning on building a blink deck around Fire Lord ZukoFire Lord Zuko, why not throw his ol' buddy Momo in there
My lands need to be carefully considered if I want to cast Niv on turn six
A lot of other notable cards are falling through the cracks by doing so: The Mind Stone and The Soul Stone are, for example, not going to make the list, as well as some other headliners