Say No to Kalista's Passive!
We have to band together to say no when a solo queue Kalista wants to be soul-bound. That's just a gateway drug to far far scarier mechanics. Even if you are a support - scratch that - especially as a support, say no to that passive all the time.
Or better yet make the player prove they are worthy before pressing yes. Make sure their cs and play is adequate. Don't just go around letting any noob Kalista soul-bound you!
The Black Spear Active: Kalista offers a pact to an allied champion, should they agree, the item is consumed and the pair are Soul-Bound for the remainder of the game. When accepted, the binding enables Soul-Marked, a passive on Sentinel, and allows Kalista to use Fate’s Call when she unlocks it.