Tretch Craventail

Tretch can choose one unit of Clanrats or Stormvermin in your army to deploy as Ambushers. If so, Tretch must deploy with this unit. In addition, he and his unit re-roll all failed To Hit rolls when attacking in the flank or rear.

Once per friendly turn, at the start of any phase, Tretch can leave any unit he is with and make move of 2D6" as if it was the Remaining Moves phase.

Units with this rule add what would be their Combat Resolution bonus from ranks to their LD value for any Psychology and Break tests. To calculate the LD of a unit with the Strength in Numbers rule, first determine the unit's LD as normal and then add the rank bonus of the unit to this value, up to a maximum LD of 10. 

Note that a Skaven General confers his basic LD and then units modify it with their own rank bonus. Any bonus from the ranks of the General's unit is not passed on to units within his Inspiring Presence range.

If for any reason a Skaven unit loses its rank bonus, it also loses its LD bonus. For instance, fleeing units do not have a rank bonus, so fleeing Skaven must use their basic LD.

All models in the Skaven army have Swiftstride when fleeing.

If a Skaven player refuses a challenge, a Skaven character is placed in the back rank as normal and may not attack, but the unit may still use the model’s LD value or Hold Your Ground ability.