OOC: Well, no, no, a Hau can't block non-physical attacks/actions.
If you were to surround one with poison it might stop it, but a Hau can't stop darkness, such as just using it to full the shield with such, it can't stop you from draining all the air in the area, and it sure can't stop the Voparak's time bubble.
Also, would this count as an attack? It was entirely uncontrolled besides the amount of light going through the magnifying glass/its amplification.
It was basically him shining a massive magnifying glass down on you, so that means the reflectors would more likely either not be able to stop it, reflect it at random, or possibly reflect it back at the magnifying glass itself.
"Actually, he did start it. From what I could pick up of the situation, the being was being quite amiable. He told the stain he required supplies, which the stain visibly does not, and that he would move to only take part of the current scrap pile, which he had claimed first, and would leave the rest for him." T.Tekan told him.
"The stain chose to instead, act like he had agreed, but in truth moved to open a potentially lethal portal opening beneath the scrap pile. Lethal due to the beings positioning, which I doubt the stain wouldn't have been able to calculate. Luckily the being has an ability that stopped said portals formation, which is also why he is currently the only one who can properly restrain the two previously mentioned bots. After that, due to pre-set upon conditions and warnings, a companion of the being destroyed the drones in retaliation, which, as you can see, the stain quickly replaced." T.Tekan said, indicating Eric's large horde of drones.
"Due to that, the stain chose to launch not one, but two strikes against the being from the machine which caused the pit, both greatly increasing the damage, and nearly forming a mega volcano through puncturing the earth's crust, which would've killed many more beings.
From what I gathered he both did it for observations of his weapons power, as noted when he himself arrived at the scene to check upon the pit, and so-as to ensure that so long as he could not access the supplies the scrapyard gifted to all on the island, no one could... of course, that final one is just an assumption on my part from the observed pettiness that the stain carries." T.Tekan said, finishing his statement to Elren.
"Also, as we're speaking, if my light-detection is correct, at another of his facilities not centered here, he is battling and attempting to kill another sentient entity if its movements mean anything."