Card Rules: Rulings powered by The Netrep API. Putting a Clock Counter on 'Clock Tower Prison' can be chained to. The effect to Special Summon 'Destiny Hero - Dreadmaster' can also be chained to. Even though this effect can be chained to , it cannot be chained to with an effect that negates the activation of a Spell Card such as 'Magic Jammer' or 'Horus the Black Flame Dragon LV8' because the 'Clock Tower Prison' card has already resolved. The effect that stops Battle Damage is a Continuous Effect that cannot be chained to. If 'Clock Tower Prison' with 4 or more Clock Counters is destroyed because a new Field Spell Card is activated 'Clock Tower Prison's' effect will activate. If 'Spell Canceller' is Summoned or 'Imperial Order' is activated all the Clock Counters will be removed from 'Clock Tower Prison'. [Re: Destiny Hero - Dreadmaster] 'Destiny Hero - Dreadmaster's' second sentence is applied if he is Special Summoned by any method not just by the effect of 'Clock Tower Prison'. Passcode: 75041269 Set: Duelist Pack 5: Aster Phoenix Card Number: DP05-EN016 Rarity: Rare Attribute: Spell Card Text: Put 1 Clock Counter on this card during each of your opponent's Standby Phases. While there are 4 or more Clock Counters on this card you do not take any Battle Damage. When this card with 4 or more Clock Counters is destroyed and sent to the Graveyard Special Summon 1 'Destiny Hero - Dreadmaster' from your hand or Deck. Card Type: Field Spell Name: Clock Tower Prison Edition: 1st