[Reference] Discipline: Broodmind

Select an enemy unit within 18" of and visible to the psyker. Until the start of your next Psychic phase, the target cannot fire Overwatch, fights last in the Fight phase even if it charged, and must subtract 1 from its hit rolls. If the target has a rule that allows it to fight first in the Fight phase even if it did not charge, then instead of fighting last in the Fight phase, it fights as if it did not have that ability and did not charge.

Select an enemy model within 12" of the psyker and roll 3D6. If the score is less than that model's Leadership characteristic, nothing happens, but if it equals or exceeds it, that model can either shoot as if it were your Shooting phase, or make a single close combat attack as if it were the Fight phase. In either case, treat that model as if it were a separate unit that is part of your army whilst shooting or making that close combat attack.

Select a friendly GENESTEALER CULTS INFANTRY or BIKER unit within 18" of the psyker. Add 1 to the Strength and Attacks characteristics of all models in that unit until the start of your next Psychic phase.

Select an enemy unit within 18" of and visible to the psyker and roll 2D6. If the result is less than the highest Leadership characteristic in that unit, it suffers 1 mortal wound, otherwise it suffers D3 mortal wounds.

Select an enemy model within 18" of and visible to the psyker. Each player rolls a D6 and adds their model's Leadership characteristic to their result. If your score is higher, the enemy model's unit suffers 1 mortal wound; if the selected model is still alive you then repeat this process (each player rolling a D6 and adding their respective Leadership) until either the selected model is destroyed, your opponent rolls a 6, and/or your opponent's result is equal to or higher than yours.

Select a friendly GENESTEALER CULTS unit within 18" of the psyker. Until the start of your next Psychic phase, that unit can charge even if it Advanced (though not if it Fell Back) and they always fight first in the Fight phase, even if they didn't charge. If your opponent has units that charged, or that have a similar ability, then alternate choosing units to fight with, starting with the player whose turn is taking place.