Storm cleric issues

I'm trying to make a monk subclass based around moving enemies and repositioning and am flavoring it as storm powers, but every time i think of an ability, i realize its either shared with another subclass or not connected enough to the storm idea. 
I like the tempest domain cleric's ability to push creatures with an attack and want something similar, but i need to think of more abilities and how to make it not a copy of open hand monk's abilities.

Stunning could be an interesting ability, to lean into lightning a bit. Too few things Stun anyway.