mtg magic card market The Gathering Foundations Play Booster Box its controller adds two mana in any combination of colors to his or her mana pool #_(in addition to the mana the land produces)_#. Cornered Market MTG - Mercadian

Its ability to sacrifice another creature you control and exile cards from the top of your library seems good, especially because it makes Rakdos indestructible

Without those cards their deck doesnt pull ahead on attrition, and Dead Weight basically kills both of them since a -1/1 Dreadhorde Arcanist doesnt do much

Because its still awesome beyond the explore synergies

But its nonetheless a very powerful and popular Naya commander, being able to give at maximum +3/+0, double strike, vigilance, and trample to your creatures, and thats like a permanent Overrun if you have a small army

Then it shuffles itself back into your library, which means youre never really out of access