Or, at worst, a benign symptom
The default commander, The Swarmlord, complements this idea by not only getting 2 +1/+1 counters for each time its cast from the command zone, but also draws a card any time a creature you control with a counter on it dies
Pluto, Friendly Pooch is a great tool that helps this deck put the pressure on, and I expect it will have a place in the Into the Inklands meta as well
This means you could put this mana into something like Urza's Ruinous Blast or Karn's Temporal Sundering at a pivotal moment
13 City In A Bottle Cares About Card Sets First Printing: Arabian Nights City in a Bottle is yet another Reserved List oddity from the game's earliest days that feels more like an Un-card, since it cares about gameplay details that normal "black border" cards don't
Its a fascinating commander, and I cant think of another that plays out the same way