Shade Crystal

Shade crystal is an upgrade-type material with similar properties to ghost crystal and netherite. It would be crafted using four netherite scraps and four ghost crystal shards. The resulting armor and equipment would have both a unique look (which I think would be best left to the devs and community to decide) and unique properties. One of those properties would be ghost crystal's ability to affect intangible blocks and mobs, and the others would be whatever elements from netherite gear the devs feel they could use without causing imbalance. In addition, when crafted into a block it would have the same blast resistance as obsidian and act solid to intangible mobs. This new upgrade material should be added because it interacts with both existing and new elements of the game in new ways, because it would add further customization of armor and gear by expanding the upgrade tier, and could potentially add interesting interaction between the nether and new dimensions like ascendance.