Should I use Radagon's Charm? The one that boosts str dex end vit or not?
My reply is "if you're good enough."
Taking extra damage in Elden Ring can be quite lethal depending on your base vigor and what you're fighting in what stage of the game.
If you're taking hits regularly in combat and boss fights, Radagon's might push you into 1 shot territory depending on the attack.
Basically, if you feel confident and don't struggle against the occasional wipe or tough opponent, Radagon's just speeds up the game for you.
If you're not confident, you might struggle more despite the additional damage.
I've sort of seen Radagon's Scarseal fall out of favor for other, less risky talismans. More damaging Ashes of War, more HP, more Poise, better Jumping Attacks all seem to get more play than the Seals now. The Seals as mentioned above more seem to be for compensating for missing stat allocation so you can fit a few other things in, rather than truly enhancing attack rating.
Nah, Radagon scar/scorseal both increase effective HP for the majority of the game since it increases vitality. Scarseal increases your HP by more then 10% up until vigor level 39, Scorseal by more then 15% by up to vigor level 44.
So unless you are already very tanky all it does is make you more tanky. (Although once you get enough HP that flasks don't heal you to 100% anymore 30? 33? it might effectively make surviving harder).
After some imperfect testing against various types of physical attacks, Radagon's Scarseal consistently increases damage by 0-3.5% for weak attacks, and 7-8.5% for strong attacks. I say consistent, but it's not very. There was even an instance where I actually received 1 point less damage while wearing the talisman.
With all this said, in general, this talisman is fantastic, and the damage increase is mostly negligible. Of course, there are times where a few extra points will mean all the difference, but overall the benefits far outweigh the negatives.
In paractice its even better then what my numbers show, the wiki notes they nominally increase damage taken by 10/15%, but due to how armor works that's only true for super heavy attacks, the effective damage increase is actually less for light/medium attacks, with weak enough stuff doing 0% extra damage.
(Note that there is quite a bit of tests shown on the
Scarseal wiki page to confirm the actual damage you take)
Should I use Radagon's Charm? The one that boosts str dex end vit or not?
As with everything else in the game the answer is: It depends. Its quite good, most of the HP stuff basically cancels out, but that leaves it as an effective 9/15 free levels.
In the right circumstances those levels can be huge, its most obvious use is if you need it to use a weapon, but even its passive effect as extra stamina+equipment+load+small bit of damage is often completely worth it.
If you have a significantly better talisman for your playstyle though for every slot its obviously not worth it (most notably stuff that increases your damage by +10%, stuff that helps your specific build like the Radagon Icon (increases cast speed), shield talisman, ect).
I would agree that the Claw Talisman is better since the +15% damage increase is huge as it works with your ash.