Never mind than.
Pyrestrike can serve as it's passage, through the sky, when it ignites in the atmosphere.
When it hits, all that is left is Gromril, perfectly preserved That's Master Rune of Gromril and Rune of Preservation, not sure about the third. Rune of Valaya = all that is left is the Gromril, perfectly preserved as an ember of hope and happiness?
So one thing we need to consider is that we have this armor, and then a Talisman to do as well. The Pyrestrike does not make him
faster, it is an explosion, the explosion as the meteor hits. Trollslayer is the sheer destructive impact of the meteor idea, the focus point of the impact. A Talisman with Master Rune of Passage, Rune of Impact and Rune of Fire is his actual passage because of how it radically increases his momentum and makes it impossible to impede Otrek while making his passage firey. Mix that with the aura of Pyrestrike and there's obvious synergy. E: What this leaves however is a gap in the meteor man's defenses versus magic, which was my point for bringing this up so I feel Valaya or Sanctuary are really necessary.
The armor then is the gromril that is left behind as you say, but I wanted to point out how I thought Pyrestrike was not the passage. I'll make a third variation of the plan basically swapping Otrek and Gloin's options, and sticking two runes of Sanctuary should stack on Gloin anyway.
[X] Plan Metal and Secret Brotherhoods. V3
-[X] Odd Places 4/10: Look on Master Yorri's map and try and discover one of his marked locations. The locations will certainly be odd, but whether they'll be useful will remain to be seen.
[Cost: 1 action] Roll for usefulness. 1 action
-[X] Trial of the Brotherhood:
[Cost: 1 Bar of Adamant for 1 turn]
-[X] [Difficult] A Royal Panoply Pt. 1:
[Cost: 1 action] If a rune you want requires special ingredients that you don't have access to I will alert you. 1 Action.
-[X] Choose 1: The King's Armor will have Master Rune of Gromril, Rune of Preservation, Rune of Valaya. Forge the Armor from Adamant.
-[X] Choose 2: The Heir's Armor will have Master Rune of Gromril, Rune of Preservation, Rune of Sanctuary. Forge the Armor from Adamant.
-[X] The Rune Metal Pt. 4:
[Cost: (8 -3) =5 actions] Student of the Odd and Mind for Metal will proc. 3 Actions.
-[X] Kingly Authority: You may petition King Otrek to flex his political muscle to expedite the process.
[Cost: 5,10,15, Favour from King Otrek, depending on tier] -1 turn taken on order. Expedite the Dragonhide.
-[X] Dragon Hide
[Cost: 2 Turns]
-[X] Obsidian
[Cost: 1 Turn]
And while this isn't as directly home and hearth related, Valaya's domain still contain's sanctuary so this set up for Gloin still produces a "preserving the guardian of the sanctuary/home" idea. This is the last adjustment I feel like doing though tonight because I need to go sleep so toodles.
[X] Plan Metal and Secret Brotherhoods. V2
-[X] Odd Places 4/10: Look on Master Yorri's map and try and discover one of his marked locations. The locations will certainly be odd, but whether they'll be useful will remain to be seen.
[Cost: 1 action] Roll for usefulness. 1 action
-[X] Trial of the Brotherhood:
[Cost: 1 Bar of Adamant for 1 turn]
-[X] [Difficult] A Royal Panoply Pt. 1:
[Cost: 1 action] If a rune you want requires special ingredients that you don't have access to I will alert you. 1 Action.
-[X] Choose 1: The King's Armor will have Master Rune of Gromril, Rune of Preservation, Rune of Sanctuary. Forge the Armor from Adamant.
-[X] Choose 2: The Heir's Armor will have Master Rune of Gromril, Rune of Preservation, Rune of Valaya. Forge the Armor from Adamant.
-[X] The Rune Metal Pt. 4:
[Cost: (8 -3) =5 actions] Student of the Odd and Mind for Metal will proc. 3 Actions.
-[X] Kingly Authority: You may petition King Otrek to flex his political muscle to expedite the process.
[Cost: 5,10,15, Favour from King Otrek, depending on tier] -1 turn taken on order. Expedite the Dragonhide.
-[X] Dragon Hide
[Cost: 2 Turns]
-[X] Obsidian
[Cost: 1 Turn]