March 15, 201510 yr This happens for Zealous Focus, Vulnerable Attack, Savage Attack, Penetrating Shot and a few others, seems like the VFX doesn't work properly with certain items and just appears at the base of the unit instead, I reported this last patch but wasn't sure if it was just for the one ability or not. http://forums.obsidian.net/topic/70556-435-vfx-for-penetrating-shot-attaching-itself-to-the-base-of-the-unit/
