Doldren antags are a right of passage. You get wrecked by a few and then after that you will never be stealth grabbed again, even if your screen turns off. I often punch in the direction of that sound even if it's not me being grabbed lol.
That spawn invulnerability is there to prevent spawn camping. Prevents disgusting things like blitzfaust trap on spawn, bubble when spawn is near edges, etc. It also let's you orient yourself so if someone is squaring you up you can do the same.
Ayaan needs tension to use her extremely low cd ability. To increase tension you must create distance between you and your target and or bend it around the environment. It is very easy to aim and few things can break it. The two universal options every unit has is either matching ayanas movement or wounding her. With the length of cord she had it was hard to do this, especially with cards that make it easier to activate or increases her speed. Ayana usually just stayed as far back as they could and hooked constantly instead of shooting. Considering you can one shot 60 hp characters, pull anyone off of a ledge, or be used in conjuction with a shot or two plus the cord to kill just about anything. Ayana isn't meant to run away, she's supposed to weave around the battlefield, lay traps, and not be afraid of getting her firsts dirty.
A tip everyone should know about queue times. Pull out your phone, or use the built in browser. You can check the forum out or go to what's on broken planet and get on twitch.