Anghkor Prok - Kroot Master Shaper [Old GW Datasheet]

Anghkor Prok was instrumental in forging the agreement between the Tau and the Kroot. Because of this, he is accorded great respect by the Tau. Anghkor Prok may therefore join and lead Tau units - the only one of his kind to be extended this honour.

Anghkor Prok has the ability to motivate his kindred like no other Shaper. Any Kroot unit in close combat that has at least one model within 6" of Anghkor Prok may re-roll failed To Hit rolls in close combat.

Independent characters can join other units.  They cannot, however, join units that contain vehicles or Monstrous Creatures.  They can join other Independent Characters, though, to form a powerful multi-character unit!  Independent Characters pass Look Out, Sir rolls on a 2+. A unit that contains one or more Independent Characters does not need a double 1 to Regroup if reduced to below 25% of its starting numbres, but instead tests as if it had at least 25% remaining.

Full details in BRB. Rule too long to copy verbatim.