It's a guy who gave his arm to a sorcerer in exchange for superhuman strength

Well, this is a major flop, to be honest, the main character uses the wine from Erglanz to put another character to sleep to switch his weapon for a prop. Therefore, he must be aware of the effect of this specific type of wine. Yet, there is a major deus ex machina flop at the end of chapter 2 (really heavy spoilers ahead).

Dramatic scene. Having defeated the outpost tower guards, our hero rushes to find out what happoned to his family. Time is of the essence, despite the fact that our hero spent weeks riding around, acting as a delivery boy for his local vassals. But now, now, he must not dally any longer. Out of the gate he rushes, but suddenly a kite is seen flying on the sky.

Gunther, the formerly anonymous crossbowman: "My liege, I am no coward, but that kite looks exactly like death."
Hero: "Why do you say that, my formerly mute companion?"
Gunther: "No particular reason, my liege, just a feeling that we should not go further."
Hero: "But my family's life may be hanging by the thread right now! Damn, Gunther, what do you propose we do?"
Gunther: "Well, perhaps, how about retreating to a nearby pub, abandoning the recently conquered tower, to ... erm... think about all this."
Hero: "Very well, despite my haste and urgency, and better judgement, that seems like a perfectly reasonable course of action. Off to the pub then!"

An hour later, in Old Lothar's Pub:
Hero: "Well, now that we are here, what shall we do?"
Anonymous woman: "Dear Sir, I urge you not to enter that castle, for it will be your death."
Hero: "Oh, well, but since my family is there, it's my duty! I have to try at least."
Woman: "Well, in that case, I propose that you drink this cup of a suspicious looking wine."
Hero: "Hmm, this thick and aromatic wine, what does it remind me. Hmmm... "
Innkeeper: "It's a special wine from Erglanz, sir."
Hero: "Yes, I distinctly remember that we used wine from Erglanz to put that oaf Erich to sleep. It looked, smelled and tasted exactly like this wine here. Hmm... curious, even the bottle looks similar. Would it be preposterous to think that after drinking this, I will fall asleep for a whole day just like good Erich did?"
Mysterious woman: "Now that is a bit of a long shot, isn't it? Coincidence does not imply causality. After all, you may not be sure that Erich did fall asleep because he drank a cup of wine similar to this. Perhaps he ate something. Or suffered from bouts of malaria."
Hero: "Well deducted, mysterious yet strangely trustworthy woman! I shall do as you propose, and drink this cup of wine similar to a brand of heavy, sleep-inducing wine right away."

One day later.

Hero: "Gosh! What happened? My head!"
Innkeeper: "You fell asleep after drinking a cup of wine from Erglanz. It puts everyone to sleep. Everyone knows it. Even you knew it."
Hero: "Indeed I did, but the clever plot twist swallowed me like a wild river current. Quickly, to the castle now! After riding around for a week like a bored tourist and after a night's stupor in the inn, I am sure time is still of the essence!"
Gunther: "I am sure it still is, my lord."


Well, I have seen sillier scenes only in a Monty Python sketch. Who writes the story for the game anyway? Surely after spending a few more coins, you could find someone less clumsy.