I don't have a vid but one strategy that I use a lot when ever I play Shiki is abuse of Shiki's quick dashes and backdashes in conjuntion with 236A or B depending on if I need to zone or get air counter hit. I find if nice to corner people and after making the opponent respect it, start using slides as mixups it close the gap.
I'm not to sure what would be nice to go off of a meaty 236B though...
214C -[corner]> 5B j.B j.C j.B j.C air throw?
or
214C -[Mid]> 236B -[Mid]> air tech punish