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Normally when fire gets too hot it turns blue. I would like to think that the Nether doesn’t always have the same temperatures and that sometimes it would get hotter then it would suppose to. I would hope for Hot Spots biome to be added in the Nether and they would carry some interesting items and blocks.
Bucket of Blue Lava: The Blue Lava that is in the Hot Spot can be picked up with an empty bucket. If anything is in the lava they will receive more damage including being set on fire by the blue flames. The player can extinguish the flames with water but it will take around 2 seconds for it to be completely extinguished. If put in a Furnace, Smoker, or Blast Furnace, it will smelt 150 items instead of just 100.
If you like this idea so far then please give this a vote and let me know what you think of it in the comment section below.