I envision the Thunderbolt Strike as throwing the target creature away from it, not gently pushing it away. I mean lightning is an instantaneous thing, and 10 feet is more than just losing your balance.
If the target of a Thunderbolt Strike is 5 feet from a wall when the target gets knocked back 10 feet toward it, what happens?
- Will the target just stop when they reach the wall?
- Will they take damage as they still have 5 feet more to move when they hit it?
- Or might they bounce back in my direction?