CLM (Cold Lava Mod)
The Mod is perfect for the Nether, when you would to explore it.
When MCreator comes out for 1.16, i would update the Mod for 1.16 [Forge]
The Mod adds:
Termochanger: Place it on the side of a lavablock, and after a time it explode and create the "Cold Lava"
Cold Lava: You can walk on it. When next too lava, it expanse
Pyrostick: klick with it on a Cold Lava Block and it place Hilporion
Hilporion: Its the block wich change the Cold Lava back into normal Lava. And unbreakable.