In decks dedicated to sacrificing artifacts (Cat Oven Combo?), its going to be a scary threat
Essentially, you have two options here: spend 2 generic and a black to destroy a creature, or spend exactly GWB to destroy any nonland permanent
Drumbellower can help you get four activations of this commanders parley ability in a turn rotation if youre in a four-player pod
A Loxodon Warhammer away from being spectacular
That said, this seems unlikely, and if it does happen, I imagine it will be more the fault of Emrakul than anything else
Valgavoth, Harrower of Souls Another legendary dork is next, this time a four-drop flying and ward for life loss on curve 4/4 Rakdos dork