Blink strike is not a one hit kill only if you have a perk and you are behind the enemy with that perk. You get no armor while in GG. GG doesn't have auto aim btw and is the only super that actually requires good aim. Arc blade last 10 seconds you can increase this with the perk that extends it when you get kills but at the trade off of health regen. This is not a thing with Titans btw they have 2x as much time without added perks. Etc