Master Rune of Immolation

One use only. A Dwarf player can cause a war machine engraved with the Master Rune of Immolation to explode at the end of any round of combat before determining the combat results. Both the war machine and all its remaining crew are instantly removed from play, and each enemy unit in combat with the war machine suffers 2D6 magical S 4 hits with Flaming Attacks, allocated as for shooting. Any surviving enemy units who charged that turn may make an overrun move as normal. This rune will also be triggered automatically when the war machine loses its last Wound in close combat.