People have asked me if rolling (with imperial currency) for him is worthy and the answer is... no, he has the Artoria curse but in him is worse because he not only has one but TWO useless skill
1) Instinct (upgraded to Dazzling journey), give you.... Stars and critical up, even if you use it at max lvl 30 stars is not going to do anything of value even if he gets a chain, this supposedly was added to fix the fact that he only has 1 quick card but in the great scheme you could just use a quick team, generate stars and let him nail criticals instead of using this skill
2) Giant beast slaying is borderline useless with a barely useful 20% recharge and a bonus again big enemies that are mostly dragons that are riders, unless you are going to grind Atlantis (there is a node with a couple of big laser eyes that are lancer) this skill is dumb
Why should you get him? do you like Takahiro sakurai and want to crack jokes about Final Fantasy 7? he is your guy
Wonder what this new event is about, is Circe even that popular? i have her, maybe i should raise a couple of her skills just in case