Given its wide range of utility, it isnt surprising that Zacama is a popular choice for a commander
House, President and CEO Night Shift of the Living Dead Non-Human Cannonball Numbing Jellyfish Ol' Buzzbark Painiac Pick-a-Beeble Pick-a-Beeble Pick-a-Beeble Pick-a-Beeble Pick-a-Beeble Pick-a-Beeble Pippa, Duchess of Dice Pokey, the Scallywagg (playtest) Pompeii Poultrygeist Priority Boarding Proper Laboratory Attire Resolute Veggiesaur Ricochet Seek Bolas's Counsel (playtest) Six-Sided Die Slight Malfunction Sly Spy Socketed Sprocketer Stairs to Infinity Steamfloggery Steel Squirrel Strategy, Schmategy Strength-Testing Hammer Sword of Dungeons & Dragons Temp of the Damned Ten Wizards Mountain The Big Idea
The card is designed to look like a classic baseball card, and unlike the original Planeswalkers, is a double-sided card
8 Sinister Sabotage Three mana for a counterspell is pretty standard in Magic
Outside of cEDH, I think Hexing Squelcher has serious eternal format potential as well
Black vise got restricted in Jan 1996 and necropotence exploded until we got black summer