Moa Form animation is non-existent
You radiate purple on mesmer. It’s pretty obvious. If they get REALLY purple, they’re either casting mass invis or moa. There’s no obvious interrupt animation for time warp though…but all are easy to counter…just knock/daze/dodge, etc.
People actually use moa? Ill admit it does look identical though.
Also, tornado is very powerful at uncapping points with constant knockbacks.
It’s also the only Mesmer ability that you must stand still to use. Generally, standing still is a terrible idea so if they suddenly stop moving and start the animation, chances are good you’re getting moa cast on you. At that point one dodge nullifies a 180s CD ult, and hey if you were wrong, then the most you’ve lost is a dodge.