Since the netherite items float in lava and do not burn, instead of knockback there should be natural fire resistance on it. Fire Aspect is a huge deal in PvP so it would change the game there and could change the outcome of many fights. Not to mention, if you're in the nether and you fall through a hole and land in lava you would be fine. This would also help against fighting blazes and ghasts, and could also help against fighting against burning zombies if you manage to get hit by one of them.
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Since the netherite items float in lava and do not burn, instead of knockback there should be natural fire resistance on it. Fire Aspect is a huge deal in PvP so it would change the game there and could change the outcome of many fights. Not to mention, if you're in the nether and you fall through a hole and land in lava you would be fine. This would also help against fighting blazes and ghasts, and could also help against fighting against burning zombies if you manage to get hit by one of them.