I have a question about this guy...



If I were to smash a mystics opponent (say blackheart) onto his last stop click, I could resolve that the 1 unavoidable in his trait occurs before he's KO'd by Mystics TA since they both occur after resolutions...correct?

If both clauses are equal, the active player chooses the timing...I think?

Inquiring minds want to know!!

You are correct that the active player chooses the order of effects that would resolve at the same time. Since both the Mystics team ability and Superman's ability are both "after resolutions" effects, they would resolve at the same time and the active player would choose the order.

But also, it wouldn't particularly matter in this specific case. Triggered effects resolve even if the character that they came from can no longer use them, including both Mystics and Superman's ability. This includes if the character is KO'd. So both instances of damage would occur no matter what order in which the effects occur.