I like to start with a 214db1RC 214db3EX1122df2
First I just want to say that 214 is a gimmick, and high level players will never get hit by that low. You're better off going for a b3 or a b2 OS after that LRC.
But even if you insist on doing this, why wouldn't you just do 214 LRC 214 EXdf2 b14 LRC 214 bf3
That does way more damage.
if i want to immediately get the corner juggling going i'll pop up with u2 then uf4bf3
I assume u2 means njp? If so, why not do njp f2 b14 LRC 214 bf3 for 10% extra damage?
I'm actually kind of embarassed that I wasn't aware of this combo. I do a much more difficult combo in the corner and now I realize this one is much easier and does the same damage.
However I would modify yours a little bit and do b2 b2 213 f12b2[h] b111+3 which does 2% more damage and leads to Raiden's best hard knockdown.
if I have 2 bars sometimes I'll df2EX after the 213, or I'll EXdf2 at the end and add another df2
That is a complete waste of meter. If you've already landed the b2, you might as well go for b2 b2 214 EXdf2 b32[h] b111+3 for 45% or if you have good execution go for b2 b2 b14 EXdf2 b14 LRC 213 f12b2[h] f12b2[h] 4 bf3 (47%)
You can still end both of these combos in a brutality if that's what you're after.
A corner combo I like as well is u2 uf3 34df2EX1122df2
31% for 1 bar?
You can get 32% meterless with njp b2 b14 LRC f12b2[h] f12b2[h] 4 bf3
I would never spend a bar in this situation but if you insist:
njp ji3 b2 b14 EXdf2 b14 LRC f12b2[h] f12b2[h] 4 bf3 (39%)