I will just copy it from another thread here:
Another thing I like to add: While Raven in blue surely is not as powerful as her white incarnation, her shields have been powerful enough already to protect her teammates from Trigons on screen world wiping, which was calced at 5A. Her shields are way more potent than her AP in blue.
The shields blocked the actual attack which resulted in the calculation and tiering in the first place. And it was while she was still in blue.
https://www.youtube.com/watch?v=zFh8vS4rl6s&feature=youtu.be
It was in the first 1-2 seconds. Take a look at the protective black shields surrounding all of the Titans. In the episode later they comment on it. The rest of the clip is the attack which got calced to 5A.
I also have to add another thing: Melchior. a demon spellcaster strong enough to manhandle White Raven in S3 (pre-Trigon) could not put a dent on regular blue Ravens shields in S5 (post Trigon), further underlining her shields have even got stronger.
If someone has the ability to bypass her shielding her actual body durability does not live up to it unfortunately. Yes, she can pinpoint her shield to whatever she likes (e.g. an actual orb barrier where she sits in and lets the enemy tire out (happened). or just a flick with her hand which creates a little barrier to block an incoming strike, but her physical durability is nowhere near that level on her own, hanging at ~7C like her profile suggest is valid.
https://imgur.com/a/BbrofhI
this specific scene and incoming attack from the right is from the Melchior dude I mentioned earlier, who in a previous season wrecked her while she was in even white.
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Sorry for the wall of text. I simply copy/pasted it. TLDR:
Blue Raven Shields guarded her teammates from 5A attack at ground zero
White Raven S3 got trashed by Enemy called Melchior in S3
Blue Raven S5 finale withstood Melchiors attacks with ease
