Clock Tower Prison (LEHD-ENA19) [Legendary Hero Decks]

Once per turn, during your opponent's Standby Phase: Place 1 Clock Counter on this card. While there are 4 or more Clock Counters on this card, you do not take any battle damage. If this card with 4 or more Clock Counters is destroyed and sent to the GY: Special Summon 1 "Destiny HERO - Dreadmaster" from your hand or Deck.