Yeah combos need 2nd pass. Now about this particular combo. I'm not a fan of it for 2 reasons:
1) Execution is really tight. If you are 100% sure you can do it sure go for it. This is probably most possible damage you can get from this situation.
2) If you drop this combo you open yourself for...
Here you are:
wrB+K is very important tool for maximizing your damage so keep trying. Easiest combo with wrB+K is:
66B > wrB+K > TAS B > 4B
Try to master this one and then other combos that use this move shouldn't be too hard.
Yes. I work on matchups right now.
I'm working on Sophitia Encyclopedia if you have any tips, info that can make it better let me know. Especially match up specific.