Sekhar, Fang of Nulahmia (Scourge of Ghyran)

Pick a visible enemy Hero within 18" of this unit to be the target. Then, make a casting roll of 2D6.

Inflict D3 mortal damage on each other enemy unit within 3" of the target.

Once Per Turn, Reaction: Opponent declared a command for a visible enemy unit within 18" of this unit

Roll a dice. On a 5+, that command has no effect, it still counts as having been used and the command points spent to use it are still lost.

Once Per Battle Round, Reaction: Opponent declared a Spell or Charge ability for a visible enemy unit within 18" of this unit

Pick 1 dice from the charge roll or casting roll for that ability. Your opponent must re-roll that dice.