User blog comment:Willbachbakal/(Champion Rework) Kalista, the Spear of Vengeance/@comment-1920550-20150718124356

While the rework does streamline Kalista's kit extremely well, the removed W passive kills half of the synergy Kalista has with her Oathsworn ally and just makes a glorified Pokemon master, always calling back the pokemon back to the pokeball.

I do think Kallista has alot of issues and her kit is somewhat bloated, but more due to her hyper synergy with lifesteal and attack speed which makes in conjunction with her passive makes absurdly hard to kill for an ADC