Guild Wars 2

Hi all, I have a question about how the blindness condition works.
I play a dps guardian so it’s really important for me to understand exactly how this works. So… here’s my questions:

1) I put blind on an enemy. Afterwards, that monster use a skill that hit 3 of my party members at the same time. The blind will only miss one attack, right? Is there a way to predict which person will receive the miss or is it random?

2) Let’s talk about delayed attacks, like elementalists’ Churning Earth. The blind should be put when he start casting or when he hits in order to miss the attack?

3) On PvE, are there some attack that can’t be missed? (i’m not talking about dredges that are immune to blind). For example, the Ettin in the Uncategorized Fractal often hits me even if he has blind on (i’m not talking about the long animation attack, just the normal swing) . I tank him so i’m sure he only hit me, despite that he just “bypass” my blind.

Thanks for your answers

1.) Blind makes your attack miss, it doesn’t matter if it hits 1 guy or all 5 it will miss.
2.) Blind has a duration (usually it’s fairly short). As long as the enemy has blind on them during the attack itself they will miss, the channel time doesn’t matter.
3.) I barely do PVE so I will leave this to someone else.

3) Assuming the ettin is a champion, blind only works 10% of the time (due to “Unshakeable”)