Wall of Stone

Source wall of stone

The wall is 1 inch thick per 2 caster levels. The wall's hardness increases to 12.

Augmented (7th): If you expend two uses of mythic power, the wall is impassable to ethereal travel and spells such as passwall and phase door. The wall is immune to non-mythic disintegrate, shatter, sympathetic vibration, and other non-mythic magical effects that specifically affect stone (including earthquake, soften earth and stone, and transmute rock to mud).