Also note that while Retch generally lands easier than Boiling Point (most importantly, 44 xx Retch), it doesn't work with 212 212 44.
It is possible to combo boiling point after 212 212 44, the timing is just really tight. The second 212 needs to be performed as soon as possible after the first 212 and you need to delay the 44 a little bit. This can be a bit confusing to read it like this but I guarantee the combo works. But watchout, it's a risky but rewarding combo. If you manage to correctly perform the combo, you'll remove 35% to your opponent's health and will have a massive frame advantage for a fullscreen setup. From this place you can throw a blood ball very early and you'll have plenty of options to work with to start your zoning.
HOWEVER, I can only recommand to practice the combo a lot and if you are a new Skarlet player, I'd recommand Retch until you are comfortable enough with Skarlet to have the patience and the execution to perform this combo in difficult situations. Because if you perform 44 too early, you will be whiffed punished (yes even if the opponent is in a juggle state, the recovery of 44 on whiff is awfully long, and it still happens to me sometimes while I almost exclusively play Skarlet with boiling point since the V3 was released) and if you perform it too late, then boiling point will whiff, you probably won't get punished, but you'll lose your turn. Also since breakaway is a stupid mechanic, the opponent can breakaway punish between the 44 and boiling point but it also applies to Retch.
Once you'll get the timing right, you'll be able to tell during the 44 if you performed it too late and you'll be able to cancel into blood ball to keep your turn and if you see you got the timing right then you'll perform far boiling point.
