Hormagaunt Brood

When a unit of Hormagaunts run, they roll three dice and use the highest to determine how far they move.

see Instinctive Behaviour

A unit that Feeds is subject to Rage. In addition, the unit may not fire any weapons in the Shooting phase, though it may still run, according to the stipulations of Rage.

A unit with this rule may assault in the same turn in which it has run.

Units with this rule roll an extra D6 when rolling to move through difficult terrain. In most circumstances this will mean that they roll three D6 and pick the dice with the highest score.

A Tyranid model with a single set of scything talons re-rolls any To Hit rolls of a 1 in close combat. A Tyranid model with two sets of Scything talons re-rolls all failed To Hit rolls in close combat.