Black is my favourite colour to play, and my first deck is a mono Black deck, with Forge, Neverwinter Charlatan , as my Commander
Yes it saves mana on mutagens, but cracking clues for , incubator tokens for , landers for , or blood tokens as free rummages
Thankfully, it's unaffected by search-stifling effects like Opposition Agent and Stranglehold
Countering a five or six mana Commander with this feels criminal, and if you can follow it up by dumping your hand into play, well youre in great shape
Some LGSs that run tournament casual Commander nights (which is a far better oxymoron than jumbo shrimp) restrict the number of proxies you can have to keep things fair, and Im sure there are pods that condone proxies under specific circumstances only