Lava Survival Suggestions

[SandboxSB]

It'd be better if there's like /ls set spawn flood 2 For a second flood. and level, score for the lava survival
like (1) Player: Hello, World!
100 scores!

[Davidpayad]

Lava survival mode needs to be more challenging. for example:
if I use only glass regardless of the level of the lava, if I put 3 layers I'm practically already safe.

what i suggest: create a "strength" rating for blocks randomly for each match. I imagined so:

Invincible Block: even with one layer it will hold the lava. independent on lava level
Strong Block: Lava has the possibility to melt slowly
Medium Block: At the extreme levels of lava block will be melted easily.
Weak Block: this is the paper block, it will melt in a blink of an eye.
another interesting point for me would be the speed of the lava according to the Level of the lava.