Kalista- W Passive

The Spear of Vengeance, such a fun marksman to play, very interactive... etc. But her passive oathsworne I think could be a lot more fun to manipulate

W-Oathsworne When you and your oathsworne strike the same target within 1.5 seconds, deal 10/12.5/15/17.5/20% of their max life as magic damage on hit (Cd)

(New) W- Oathsworne- (Somewhat like kindred) Bond with an allied player that has died recently (Except yourself) For every attack they deal to an enemy apply a stack of vengeance, upon rending them (E) deal 6/12/18/24/30 true damage +1% of maximum health, and restore that much health to your Oathsworne (takes away the oathsworne pact)

R- Fate's Call (Same Effect) BUT ALSO Detonates all stacks of vengeance, dealing damage to all enemies hit based on vengeance stacks for 3/6/9/12/15 + 0.5% of maximum health, and restore that much health to your Oathsworne. Fates Call will always deal damage equivalent to at least 10 stacks.