Gibbering Descent

Oracle Text

At the beginning of each player's upkeep, that player loses 1 life and discards a card.

Hellbent — Skip your upkeep step if you have no cards in hand.

Madness 2BB (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Card Rulings

5/1/2007 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.