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”.