hello there !!
GW community shared details on harkeen and Calgar
so : 4++, deep strike, -1ld 18" bubble, reroll bubble for raptor units within 6", death to the false Emperor, gain +1A each time he kill a Character. Cost a bit less than a battlewagon ^^
so 2+ 4++, only take 50% of wounds, chapter master , and +2 cp. Cheap at only 2x custom boosta Blasta !