|English||Inverse Mountain Crystal|
Bakudō # 73. Tozanshō (倒山晶, Inverse Mountain Crystal) is a Kidō spell.
As the spell ignites at a single point, blue energy extends upward to four points, which creates an inverted pyramid that solidifies into a barrier around the caster. The spell is usable around other already active spells. It can be used to trap others inside of it.