If your duties as a Noble require you to lay waste to someone or something, to bring destruction on a vast scale, and your own miracles cannot do what you need to do, there is a way forward.
I would not say that I recommend this course of action; but nevertheless I feel I must make you aware of it.
Equip yourself with a stout walking stick and a hamper of the best food you can reasonably spare. Travel to Trinity, or Bikini Atoll, or any such place; find the very point where a nuclear weapon detonated; strike the ground three times with your stick, and declare in a firm voice “I would like to visit my Granny.” The way will open before you.
The forest is dark, and you must be careful not to trip on roots or fallen concrete. I hardly need mention that you must not stray from the path, lest the beast find you.
In all honesty, the beast will likely find you anyway; but I myself always find I feel more confident if I deceive myself into thinking my choices make a difference.
If - when - you meet the beast, do not falter. You may show fear - it might even be considered rude not to, though honesty is always the best policy - but you must not hesitate.
It may exact a price from you, tearing your flesh with its shining teeth or rending you with the blades of its coat, or it may not. Remember your purpose and who you are, and tell the world the story of why you pass the beast intact, and you may pass.
And then you will reach Granny Slaughter’s cottage.
Show respect to the children, if they are present, and enter. Offer her food from your hamper, and sit and talk with her. When she asks if you had a reason for visiting your Granny, twice answer that you simply wished to show her a little kindness.
The third time she asks, you may admit that there is something you wish help with.
Explain what you need, and she will smile and nod and tell you she has just the thing somewhere here. From her basket or her cupboards she will give you a treat, just the thing you needed to destroy what needs to be destroyed.
Remember, though, that there are consequences. She asks no price - her gifts are gifts indeed, freely given, but no blade it is in her gift to give can fail to cut the hand of its wielder.
You must ask yourself, is this worth it?
And if it is, take the gift she gives you and destroy your foes in a blaze of fire and ruin that will, unless you are very clever, consume you along with them.
Such are the treats Granny Slaughter, Magister of Escalation, Forlorn Hopes and Weapons of Mass Destruction, gives to her beloved grandchildren when they visit.