Birthing Hulk

Birthing Hulk is a Commander card through and through — the seven-mana cost is only acceptable in a format where games go long enough to cast it, recur it, and abuse the death trigger repeatedly. In Modern or Pioneer, it's too slow and too replaceable to see competitive play; aggressive and midrange decks would never tap out on turn four-plus for a creature this expensive and this soft to exile-based removal. Legacy and Vintage have access to it but have no incentive to run it when faster engines dominate. Commander is where the Hulk earns its slot: sacrifice loops, Phyrexian tribal synergies, and token doublers all turn its modest rate into genuine inevitability.