User blog comment:Willbachbakal/(Item Concept) Retuning Zeke's Herald/@comment-8050014-20150122114853/@comment-1330314-20150122115318

That's very true. The original effect was actually pretty much a straight copy of Kalista's W passive, but I changed it to a smaller effect on a lower cooldown precisely because I ended up realizing Kalista herself could end up dealing insane burst, using only an autoattack and the help of her oathsworn ally wielding this item. I think the above effect is sufficiently different from Kalista's to have slightly different incentives (Kalista's W passive works like a poke ability, whereas my version of Zeke's passive would be better suited for hard and sustained focus), but even then there's likely room for something more original.