Item Type:

fire resistant:

• Description: Represents if an item is fire resistant. If true, it will not burn in fire or lava.
• Return Type: boolean (yes/no)
• Change Modes: set
• Since: INSERT VERSION
• Examples:

set fire resistant property of {_i} to true

item rarity:

• Description: Represents the different item rarities of an item (represented as a string).
  Options are: "common", "uncommon", "rare", "epic"
  Requires MC 1.20.5+
• Return Type: text
• Change Modes: set, delete/clear
• Since: INSERT VERSION
• Examples:

set item rarity property of player's tool to "uncommon"
set {_rarity} to item rarity property of player's tool
if item rarity property of player's tool = "epic":