Harvest Angel of Doom
[ Pendulum Effect ] 
During your Main Phase: You can destroy this card, and if you do, add 1 "Black Horn of Heaven" from your Deck to your hand. You can only use this effect of "Harvest Angel of Doom" once per turn.
[ Monster Effect ] 
If this card is Normal or Pendulum Summoned: You can add 1 "Horn of Heaven" from your Deck to your hand. If this card is Tributed: You can place this card in your Pendulum Zone. You can only use each effect of "Harvest Angel of Doom" once per turn.