Wonder Duo Brainrot

Urges

The first point of connection between the two characters is the fact that they are (sometimes) both driven by a certain hunger for blood or violence. As Durge you will be able to see how your companions react to these black outs, and you will worry about it, and Astarion seems to be among the most accepting. Maybe it is just his need to keep on Durge's good side, or maybe it is just the fact that he has experience on it.

In later scenes, Astarion will draw parallels between Durge's experience and his own. If Durge is cursed to succumb to his own urges, then Astarion will directly connect that to the times Cazador's has driven him feral and mad with hunger.

During the extra Durge specific romance scene, Astarion makes another direct connection to the violence in Durge and what he previously did. He does not have a completely clean conscience (that is clear, and not just because of Cazador), but because he is not as "good" at making the good choice as other companions.

He understands the hunger and losing control over his body more than others, so he can empathize with Durge and what they are going through. He jokes about it, sure, but he is genuinelly worried.

Other points of overlapping are, of course, the fact that both characters have gaps in their memories. Astarion because of trauma and Durge because of physical trauma (torture and well, violence). Their past is one of violence, for both of them, and while Durge operated it a little more voluntarily than Astarion, this NEW Durge, the blank state we get at the start of the game... well, in a good playthrough they try to resist their need for violence just like Astarion is resisting his hunger and his thirst for power.

Reciprocal saving

Astarion is literally introduced as a damsel in distress. He is the only companion whose quest NEEDS to be completed before the tadpole is removed or he will become a slave again (other companions might have other consequences, but nothing that cannot be solved after the tadpole removal, and in case of Karlach there is no limit, she is destined to die or return to Avernus). He does need help, he cannot face Cazador alone, so we all know his plan for protection.

The first scene he appears him is literally him asking for help to try and lure the player and get some answers out of them.

As a player with companions characters, we are all used to helping them in their quests. But as I said, Astarion's help is kinda on a ticking clock based on the end of the game... and well, he is the one who is clearly less involved with abilities and fighting. In story, he is the only one who is out of place. Gale is a great wizard and Mystra ordered him to take care of the brain, Wyll is a legendary hero, Karlach is a legendary warrior, Shadowheart is on a mission for Shar, Lae'zel is also a warrior and she will be on her mission for Orpheus soon, Halsin is a powerful druid who wants to break a curse directly connected to the brain etc. etc.

Astarion is... a guy. Who was a slave. By accident he has been chosen by the mindflayers and freed. His only connection with the group is the tadpole, he could not care less about, well, the "mission". His own mission is remaining free and getting rid of Cazador. And he needs the player character for that (we know he is recaptured if he leaves the group).

I could go on a rant about the angst of it all and the power imbalance this create and the fear that surely drives him through act 1, but for now I wanted to talk about this "be saved by the player character" and how with Durge it finally becomes reciprocal.

This is more than "let's help each other on a quest". This is two characters who are on a path of possible evilness and destruction, promising to save each other.

I think some of the imbalance in a Tav's playthrough, where Tav is good and helps Astarion out of their good heart, disappears in a Durge one.

Durge NEEDS Astarion as much as Astarion needs him. Astarion directly promises Durge to save them from becoming a slave to their urges. One of my favourite options as Durge is replying "I will be the person you want to see in me". Because for ALL the complaining, all the times Astarion says he wants power... the person he wants to see in Durge is still someone sweet and kind, a good heart.

You have two possible bad people who end up being each other moral compass and saviors, equally. And I think it makes the story so much richer. Of course, in the case of Astarion it is a direct persuasion check from the player (as long as you make him face the consequences), in the case of Durge is more metagaming, given it is the idea of wanting to be the person Astarion sees in you (and your friends and companions).

Both Astarion and Durge need to be seen for the good parts they have in them.

After the Durge questline, when they refuse Bhaal, Astarion will say "But somehow by your side I still only ever saw you", which echos what he says to Durge (in his romance scene) that he feels seen by them.

Family

For all the violence and the horror, the quests of Durge and Cazador are presented as family. Durge's family was what led them to violence, their father basically cursing them to a life of hate, then they were betrayed by their "sister" and made into a blank state.

Cazador constantly swings between considering his spawns as children or pets/dogs, putting himself in the role of the almost father. The spawns call each other siblings.

While the two families are quite different, they both end up with Astarion and Durge having to make a choice about choosing or refusing the "father"'s power, one to be stolen and the other offered.

You were also both made by them. Cazador often remarks on Astarion being his and being made/his creation. Bhaal directly considers Durge a puppet he made, and if Durge does not agree with his plan then he will make another.

The evil choice

I found it pretty interesting that there is only one quest among companions that have a full on evil choice, and that is Astarion's. Shadowheart's two choices are both painful and very hard to decide upon, Gale's choice of giving back the crown is seen generally as a good choice but it also involves giving back to Mystra who abused her power on him. Karlach, Minsc and Jaheira don'r really have choices. Lae'zel's choice of queen vs Orpheus is a clear path to Orpheus (as in, I think she decides that on her own if she sees him) but the real choice happens at the end, where she has to choose between Orpheus and living for herself - what is the good choice there? Helping free her people or live her own life? Wyll's choice is also hard and almost equal in pain/gain, one is saving his father and being stuck in the pact, and the other is freeing him but knowing Mizora will come for his father again (even if you save him in game). I think it is telling that the choice is hard because Wyll never says he regrets making the pact in the first place, it was a hard choice he had to make.

Astarion and Durge are the only personal quests that have a clear and defined evil ending, and interestingly enough it is similar...

Both glowing in red light while accepting the cursed power given by their "fathers". Both will come out of it with glowing eyes and evil smiles. The bad choice makes them the worst version of each other, as they both failed to be anchor for their good selves.

I really dislike ascended Astarion, and he clearly has a bigger impact on his personality, given Durge is a player character, but I still found it a good parallel, just the fact that these are the two in the party who can be REALLY evil, who can truly go towards the worst possible path. And not a path of "evil together", but a path of domination and reciprocal destruction.

Astarion becomes everything Cazador's was and wants to take control of Durge, and Durge has to follow Bhaal's plan and take control of the brain... which ends up with Astarion just where he started, as a puppet controlled by that person who (as the Butler once said) he should have feared the most.

Rebirth (the good choice)

NOW TO TALK ABOUT MY FAVORITE POINT. Both stories, both quests, end in an explicit rebirth symbolism.

We have Durge literally dying, and being resurrected by another god of death, coming back to life to find out that he has been given a second chance. The urges have gone, they are free, they are a new person forged by the experience they went through during the path to Baldur's Gate.

In the same way, Astarion is also forged by his experiences with the group and Durge, by what they all went through. So much that if the player does not allow him to confront Sebastian and show him that he is driven by fear, that he, deep down, feels compassion for the spawns... then the player will lose the ability to persuade him to stop the ritual.

Astarion is also reborn, so much that we have a whole scene where he writes a new date on his tomb, it cannot be more explicit than this.

In both cases not only the theme of rebirth but of responsibility is stressed. Astarion talks about freedom as a place where he (and his siblings) are responsible for their choices, good or bad. And the same can be said about Durge.