I'd like to add a bit more to the BF thing, honestly we have a crap ton of setups into BF. I'll just list them below for everyones sake, not all are true as well and I'll mention what it relies on.
F-throw>BF (True at low into mid % on the majority of cast, past 50 starts to get unreliable)
D-throw>BF (Airdodge read, short distance variant)
Autocancel Fair>BF (Techchase, mistimed tech, can true combo if done immediately at certain %)
Autocancel W-Nair>BF (Techchase, mistimed tech, can true combo if done immediately at certain %)
Autocancel W-Bair>BF (Techchase, mistimed tech, can true combo if done immediately at certain %)
Rising Storm (fullhop needles) >BF (True combo, was told it's not the other day but I think that was bull)
Any Techread>BF (Lol read them rolls)
I've seen Dair>BF done and I've done it once but it's super odd and shouldn't work like ever lol.
Some more little tidbits on BF
You can shorten or increase the length just by holding the stick in the direction you want
You can press either A or B to make the active hitbox come out sooner
You can hit an opponent with one BF twice if you hit them towards a wall and they miss the tech
You can cancel all lag on hitting an opponent by pressing A or B as soon as possible on the rebound
Your Legs Hurtbox is super intangible during this move and it can do some stupid stuff, such as hitting ledge from below.
For @
7upjawa
some extra tips on killing, Usmash will tipper a large portion of the cast even while grounded if you hyphen-usmash, and since you're playing sheik expect smarter players to last til' 150%+. Just keep combo'ing and learn the tipper d-tilt>DJ u-Air string as it's amazing. It's one of our few strings that kill at 90-100 and it's wonderful, credits to @
Virgman. Who's totally a scrub playing fox now, hope your ears bleed out mate.
and last bit, look up trumping and practice it as it gives us so many cool options such as trump>getup>Vanish.
Best of luck!