Renegade Ogryn Brutes

At the start of the fight phase you may activate the combat stimms - If so, roll a D6. On a 1. One Ogryn in the unit is immediately slain. on a 2-6, each Ogryn increases their attack characteristick by 1. On a 6, each Ogryn in the unit gains D3 Attacks (roll for each unit)

If this unit makes a charge move, add 1 to the Attacks characteristic of every model in the unit until the end of the turn.

See Force-level Covenant entry, if any.