yeah, it would require a lot of black control, but like you said, popping
languish and clearing the board and dealing a ton of damage may be fun.
only concern would be running up against collective company decks and werewolves that can out damage you. Having something like consequences for killing your creatures could make them hesitant to swing in. But if you are just aiming for causal FNM with no worries about winning, you'll get some grins for a creative idea!