Gibbering Descent
Enchantment
Hellbent — Skip your upkeep step if you have no cards in hand.
Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)
Legal in
Modern, Legacy, Vintage, Commander
Rulings (10)
If you have no cards in hand at the time your upkeep step would start, instead that step is skipped and your draw step starts.
2007-05-01
If you choose not to cast a card with madness when the madness triggered ability resolves, it's put into your graveyard. Madness doesn't give you another chance to cast it later.
2022-12-08
If you discard a card with madness to pay the cost of a spell or activated ability, that card's madness triggered ability (and the spell that card becomes, if you choose to cast it) will resolve before the spell or ability the discard paid for.
2022-12-08
Casting a spell with madness ignores the timing rules based on the card's card type. For example, you can cast a sorcery with madness if you discard it during an opponent's turn.
2022-12-08
