Free 9/9s are good, especially when they have the abilities that Zacama does
For example, you can add Katara, Waterbending Master to any Commander deck that cares about casting cards on your opponents turns, like Alela, Cunning Conqueror, and its going to do fine
Foretell this spell on turn three if your opponent is off to a fast start, or hold onto it until turn five or six to wipe the board and counter your opponents next spell
This particular Magic card, which first appeared in the 1994 Legends expansion, features hooded figures that resemble a hateful organization from real life
Of course, there are some other cards that arent artifacts but provide different effects when combined with them