Enter a movement command while winding up Kalista's basic attack or Pierce to lunge a short distance when she launches her attack. When Kalista winds up her attacks, moving the left joystick will cause her to dash for a short distance in that direction after she throws her spear.
When the game starts, she can choose an ally to become her Oathsworn. Kalista cannot change her Oathsworn.
Once Kalista launches her attacks, they cannot be canceled. Her dash speed and distance scale with boot tier.