Item Idea - Stellar Upgrade

I know the title sounds like something out of a mod, but I promise it's nothing too over the top or crazy.

Netherite was added back in 1.16 and later expanded upon in the Trails and Tales update by requiring the Netherite Upgrade template.

This got me thinking about the new possibilities available. Since there's a Netherite Upgrade, there should be others (such as a Stellar Upgrade). My idea here is not the inclusion of a tier above Netherite, but rather an additional option for upgrading diamond tools and armor.

Stellar tools and armor would have the exact same stats as Netherite ones. The difference is that similar to how Netherite doesn't burn in lava, Stellar would be immune to explosions. The player would have to make a choice of which upgrade they would rather have: a tool immune to lava or a tool immune to blasts.

The Stellar Upgrade could be obtained in End Cities and would require a diamond tool, a Nether Star, and the Stellar Upgrade template item to all be combined in a smithing table. Duplicating the template would require the template, 7 diamonds, and a block of endstone.