Kefka, Court MageKefka, Court Mage Speaking of grindy, Kefka, Court MageKefka, Court Mage strikes me as the long sought-after commander for a more traditional grinding game plan for a cEDH deck
In even rarer cases, the back might not be printed at all
Even if you just draw three cards it is a slightly more expensive Harmonize, another popular green draw spell
Maybe just a few smoldering shields, the echo of war drums, and maybe a pile of treasure tokens if you played your Pitiless Plunderer or Warren Soultrader just right
If you enjoy swinging tempo with one play, Gisa is a great pick
Theft is a key part of the blue/black Dimir decks (though it has spread to other colors) and is a very fun, if notorious, way to play Commander