Random stuff that may be relevant to the MU: Based on numbers I have from this [
https://docs.google.com/spreadsheet...ZIiBdGv6xOFk/edit?pref=2&pli=1#gid=229950128], her ftilt is -15 on shield [-8 after shield drop] and frame 5, while her jab and spotdodge are frame 2 [shield is frame 1]. This means if she doesn't shield or spotdodge, we can Limit Cross Slash her for ftilting our shield [invincibility beats jab], and we can always dtilt it [frame 7] at close range. Because ftilt is slower than jab, if she is repeatedly ftilting your shield, you can Cross Slash OoS to beat it. Climhazzard is frame 7, so frame pefect OoS Climhazzard is frame 8, meaning we can also Climhazzard her for any ftilts on shield (if we have the range, someone might want to test how quickly Climhazzard's hitboxes extend] (I'm also unsure if b-reversing adds any frames of startup, although I don't think it would). Dtilt is -21 on shield [-13 on shield drop], so we can also Cross-Slash, Climhazzard, or even ftilt it [and ftilt, while perhaps Cloud's most average move in terms of function, still has good range and passable KO power near the ledge].
However, more interesting is the fact that ftilt being -15 on shield means it's -11 after jumpsquat [Cloud's is 4 frames]. If I'm doing math right and Cloud doesn't jump too high [he shouldn't, Sheik is tall], in theory you could jump Cross-Slash OoS her for ftilting your shield
every time. This of course assumes you time the jump nearly perfectly, but if Cross-Slash reaches Sheik, it's a 19% punish (fresh) for ftilting Cloud's shield a single time. If that's the case, it means that holding shield in limit at high percents vs Sheik is hugely problematic for her... if she's at 80% and we're at 220% in limit [aka when ftilt would almost certainly KO even in limit, but none of her throws do], ftilt kills us, but shielded ftilt kills her. This scenario is admittedly highly unlikely, but it should give you an idea about the power of Cross-Slash OoS, both with dropping shield and jumping, and how much more threatening having limit makes Cloud.
Her fsmash is -18 on shield [-11 after shield drop], so we can drop shield Cross-Slash that too [her other smash attacks are bad enough on shield to Finishing Touch or fsmash].