Currently, you're not in initiative order, so if you make an attack, feel free to add a +20 aiming bonus.  (which will negate your called shot penalty just fine)  If you attack the false soldiers, though, you'll have to roll initiative.<br/><br/>On another note, as I see the Ruinous Powers, Khorne is the strongest, Slaanesh is the weakest, Nurgle is stronger than Slaanesh, and Tzeetch's power varies wildly.  Also, at the moment of Slaanesh's birth, she was strong enough to threaten the entire galaxy and devour the Eldar pantheon, though he became much much weaker afterwards.  (thankfully)