Card Rulings:Clock Tower Prison

• 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".

Mentions in Other Rulings

• 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".

• Destiny Hero - Dreadmaster: If "Royal Oppression" is face-up on the field you can activate its effect to negate the Special Summon of "Destiny Hero - Dreadmaster" when he is Special Summoned by the effect of "Clock Tower Prison". If your "Royal Oppression" is face-down when "Clock Tower Prison" is destroyed, you can chain its activation (flipping it face-up) to the effect of "Clock Tower Prison". "Royal Oppression" will resolve first, and be face-up when "Destiny Hero - Dreadmaster" is Special Summoned, and then you can activate its the effect of "Royal Oppression" when "Destiny Hero - Dreadmaster" is Special Summoned in order to negate the Special Summon.

OCG Rulings

• A Clock Counter is NOT Spell Counter.

• Battle damages are not done to controller even if he/she doesn't control any [D-Hero] monsters.