Thunderbolt Strike is a Tempest Domain Cleric passive feature that pushes Large or smaller creatures 
3 m / 10 ft that are dealt 
Thunder or 
Lightning damage from the Cleric.
Description
When you deal Thunder or Lightning damage to a creature that is Large or smaller, you can also push it up to 3 m / 10 ft.
How to learn
Classes:
- Class level 6: Tempest Domain