Master of Ruinous Ordnance
Codex Supplement: Iron Warriors, p. 8
This warlord has perfected siege warfare over countless millennia in the most brutal war zones so that no means of sundering enemy defences are beyond him.
At the start of your Shooting Phase, you can select a single friendly Iron Warriors unit within 12". All weapons that unit is equipped with that have the Blast (x) or Indirect Fire special rule gain the Sunder special rule until the end of the Phase.
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Abilities and Traits: