SWeb and BSentinel have a 25 frame(1 second) NextDelay. How does this affect the skills?
The NextDelay property, in this case, renders these two skills mostly useless (even detrimental), as they do little damage, in addition to preventing the above attacks from doing any damage for the 1 second duration (including attacks in the NextDelay list, from other characters). However, they both have some redeeming factors. SWeb is still useful as a Lightning trap synergy, and BSentinel remains the only AoE duration-based Blade skill (and hence is a good method of distributing poison/elemental damage), in addition to looking very cool.