Forum:Breaker, The Magical Knight question

Your opponent has trap hole set and another trap card set. You have Magical Citadel of Endymion on the field with 1 spell counter. Breaker, the Magical Knight is normal summoned on your turn. Trap hole is activated. Can you use Breaker's ignition effect that destroys a magic/trap card by removing a spell counter from Magical Citadel of Endymion even though trap hole has been used on Breaker?

Another question about breaker too. If skill drain is set on opponent side. You have citadel with 1 spell counter. you normal summon breaker and use its ignition effect to destroy a set mag/trap card by removing counter from citadel and you choose the set skill drain. your opponent activates skill drain. Is skill drain still destroyed? If not, what if you chain it to torrential tribute and will Breaker's effect be resolved in the graveyard?