Diffusal Wave

As a bonus action you smash a small leaf ball filled with water that sends a small wave of water out from around as you feel overrun pushing creatures within 5ft of you, tiny, small, or medium 10ft feet away from you. Each creature affected by this spell must make a STR saving throw(Casters Spell Save) . This spell does not allow for the caster to use opportunity attacks. 

Crafting Requirements for M*: a few leafs some water and some string and 5 minutes per ball.