Use this build in-game
Build ID: 343786 - copy and import it in the Deadlock shop
Mina is all about mobility and damage. She is a glass cannon. This means she is squishy so work on moving around the map with your umbrella for quick escapes. Practice using the air ramp boosters placed along rooftops. you can pretty much outrun anyone by using 2 to get to a roof and mary poppins that shit away from danger.
Recommended ability leveling order for this build