I picked up a Mysterio for my SinSyn team yesterday, and his trait has me a little confused. Could somebody break it down?

Mysterio can place hindering terrain via his Smoke Cloud. So if he puts Smoke Cloud under someone they can't use the listed powers until the turn ends.

So how bould I smoke out somebody's super-senses before I attack? If they occupy it at the start of the turn it would have to be placed before the attacking turn, right? And the timetable for Smoke Cloud doesn't jive with that.

Your turn starts...
Use Mysterio to put Smoke underneath Spider-Man
Use someone else to attack Spider-Man (Spidey can't use SS since he's all smoky)
Turn ends

His power states if they occupy hindering terrain marker at the beginning of an action, not beginning of the turn, maybe you misread.

There's also an errata on Mysterio. Someone dig it up, I can't at work.

Forgot I had it saved as a file so here you go:

Here's a link to The Final Word: Mysterio which might help

Oh! Thanks guys, that clears it right up. Now to go smash some spideys!