Yseult and Blood Weakens

Yseult plays a Melpominee card and Blood Weakens is in play. How it works?

Thank you!

Ona phone, but for clarity, yseult says " when yseult plays a card that requires melpominee, you may draw an additional card. Discard afterword"
Blood weakens says"cards that require disciplines are not replaced until the end of the action or (blahblahblah)"

So, no bw out means yseult plays lily prelude and you draw two, drop one. Blood weakens is out, she plays lily prelude, she draws an additional(one more than zero) and discards afterwords.

Thats how i read it, at least. Drawing an additional card is in this case stated on ysuelt. So, you dont get your replqcement, but you get to daw and dicard per her text.

Name: Blood Weakens
Cardtype: Event
Gehenna. Do not replace until a vampire commits diablerie.
Cards minions play in an action that require any Disciplines are not replaced until the end of the current action or until any Methuselah's hand is empty (whichever comes first). Any vampire who commits diablerie is immune to this effect until the next Gehenna card is played.

Name: Yseult
Cardtype: Vampire
Clan: Daughter of Cacophony
Group: 3
Capacity: 6
Discipline: FOR MEL PRE
Sabbat: When Yseult plays a card that requires Melpominee [mel], you may draw an additional card. Discard afterward. Yseult cannot block vampires with capacity above 4.


Draw the extra card when you'd replace the card. This is to be fixed in later cardtexts.

Thanks, that's what I thought it would be.

Regards!

Really? So you have to keep track of which melpominee cards were played by different vamps to know which ones to draw extra for? Am i correct in assuming that within that bunch of cards, you choose which ones to replace first at turn's end? Or do you also need to keep track of the order they were played in?