Tamurkhan's Horde Army [LEGENDS]

After you have chosen the Maggotkin of Nurgle allegiance for your army, you can give it the TAMURKHAN'S HORDE keyword. All MAGGOTKIN OF NURGLE units in your army gain that keyword (with the exception of named characters that do not already have the TAMURKHAN'S HORDE keyword on their warscroll). All units with that keyword benefit from the Tamurkhan's Horde allegiance abilities, in addition to the allegiance abilities in Battletome: Maggotkin of Nurgle.

Subtract 1 from run and charge rolls for enemy units.

You can use this command ability at the start of your charge phase. If you do so, pick 1 friendly TAMURKHAN'S HORDE HERO. You can re-roll charge rolls for friendly TAMURKHAN'S HORDE units while they are wholly within 14" of that HERO in that phase.