User blog comment:Linathan/Unit Spotlight: Celestial Archer Loch/@comment-10054175-20150809180320/@comment-26140304-20150809181115

Sparks occur when two hits strike at the same time. With high hit count units, like Lario, Claire, Feeva, etc., you can time Loch's SBB and UBB by only having to spark one hit.

And thank you. :)