The idea is that this alien hunts by spitting a sticky slime/whatever that hinders the movement of the prey, making it easier to reach and bite/sting.
How would you guys think it's best to implement such idea (if possible)?
I know that I can use damageAlter to damage TUs and Energy, but last time I checked the damage (or penalty) didn't carry over to the next turn; so for example if an alien hit a soldier with such weapon, on the next player turn the penalty would have gone (am I wrong? AFAIK TUs would completely restore; on the other hand Energy would restore partially... I'm almost tempted to give every action an Energy cost...)