A crack appears in the ground at the caster's feet and runs for 4D6" in a straight line in any direction in the caster's arc of sight. Any models in its path must make an Initiative test to leap out of the way. Models that fail are removed as casualties. Instead of taking an Initiative test, war machines and chariots must instead roll a 5+ or be destroyed.

Buildings (or a single section for larger structures) collapse on a roll of 5+. Any models inside must pass an Initiative test or be removed as a casualty. Replace the building (or section for large buildings) with difficult terrain and place survivors in a unit so that at least one model is touching the newly formed rubble. If any models cannot fit, they are removed as casualties.