Vicious Clown

In Commander, Vicious Clown slots cleanly into hellbent and madness shells where the hand is meant to be empty — the discard is a feature, not a bug, and the 12-damage death trigger is a legitimate political and damage-racing tool. In aggressive 60-card formats like Modern and Pioneer, the discard-your-hand cost is almost always too steep on a four-mana creature that still needs to die to produce value, so it doesn't see competitive play there. Pauper is where Vicious Clown is actually legal and most interesting in a budget sense, though the format's efficient threats make a four-mana setup card a hard sell. Legacy and Vintage have zero interest — the bar for four-mana creatures is stratospheric.