The simplest, yet strongest in TPT!
Analysis:
-QRTZ, Prevents ACID and CAUS
-COAL, Cannot melt, protect INSL and TTAN below from molten TTAN above.
-INSL, Insulates heat to protect TTAN below from the heat of COAL.
-TTAN, Blocks pressure, protects COAL below from pressure.
Try to destroy this wall with BOMB, NOT MACHINE.