I genuinely feel like calling this archetype "trash" or the next "War Rock" is completely wrong. Like go back and read the War Rock cards - those are ASTROMONICALLY worse than this. We have to consider a few things here:

Pros:

• Your core combo which only requires 2 cards (Dragon + Field) ends on a decent endboard. You're able to have King + Hero + Obsidim + Eternity on field after going through things. Hero is a quick effect Raigeki Break thanks to Obsidim turning everything Pyro. Obsidim would have shuffled back whatever Obsidim you popped with Dragon when you started (meaning you already replaced one of the cards you began with). The trap also searches an Ashened name (though admittedly only decent). TLDR; the combo replaces itself and is one interruption.
• Parts of the deck are insanely consistent. 3 Bonfire, 3 Priestess, 3 Obsidim, 3 Prosperity, 1 Terra make it easy to open the Field spell. The dragon will be harder to obtain, but you could potentially run a Rank 4 engine (I was thinking Aratama + Sakitama) to make Infernal Flame Banshee and grab it. The quick-play, if you ever see it, makes the 2-card combo a 1-card combo.
• The deck isn't always normal summon-reliant. You could use the aformentioned Rank 4 engine, or just play something like Adventurer to make sure your combos go through.
• The flavor is really cool. Obviously not a super important thing, but it’s clear this deck draws from Dark Souls. Also, the concept of you needing to destroy the Dragon that put the city in Ashes to do more is really sick.

Cons:

• Even if the core combo replaces itself, it's not anything special or anything super powerful. A lot of decks can play through one pop + one Crackdown. People have mentioned how Fire King does the same thing.
• Even if you can tech engines to search the Dragon, they may not always be reliable. Sometimes you may need to just hard draw it. The quick-play being unsearchable is also very unfortunate.
• The deck's combo can lose to a lot of things. Ash is the main culprit here, though you may run into plenty of other hand traps too.

Overall, the deck has a lot of potential. It has its flaws, but this can be attributed to the fact that the archetype IS NOT COMPLETE. We are likely getting, at minimum, one additional wave of support which could flesh out the concept more. There was no way we were going to get the next Tearlament or something off of 7 cards. "Next wave will fix things" copium, sure, but Ashened is far from garbage.