The manner in which Mirror Images choose their targets is publicly available using a quick Google search. This question would be borderline even for SQSA. I'm keeping this to a warning, as it's not the worst question we've seen, but it's still quite basic.
On the MI portion, I've had problems where even after I castes a few times on the tendon that they would swap to either the amalgamation or the corruption and not dps the tendon at all. Is there a way around this that I am missing or just working as intended?