Armor upgrades (leather, iron, gold), obsidian and Ender-armor

1. First of all, if diamond can be upgraded to netherite, then these upgrades should also be available:

Leather to Chainmail: We know why. Also, chain boots should let you walk on powdered snow. Upgraded with leather armor, the required template, and 1 chain.

Iron to Shiny: I couldn't get a better name. Knight armor?

Gold to Imperial: Shiny but gold. Gold Knight? Gladiator? Royal?

Both iron and gold need a "Coat Of Arms" item (iron and gold respectively) to upgrade. 

Chains/ Coat of arms heal 50% of their respective armor's health.

2. Secondly, obsidian should have its own armor type, being almost as strong as diamond, but with little durability. Off-brand diamond, basically.

The upgrade, however, does not disappoint. The armor, the needed template, and an ender pearl give you ender armor, with slightly more durability (around 200 points), and teleportation capabilities.

Let me explain. Holding space will teleport you to where you are currently looking at, and holding a direction key while pressing space will teleport you in that direction.

This would also be a good time to introduce gloves. Why? Each teleportation attempt drains 5 durability from the armor. Wearing multiple pieces divides the damage.

Having five pieces (gloves included), all at around 200 durability, would give you 200 attempts at teleportation. The range isn't much, so elytras are safe from being overshadowed.

The ender armor can be repaired using ender pearls.

Teleportation also cancels previously gained fall damage.