Ripping from Overwatch?

Heyo I have no idea how Blizzard games work, but I want to rip the sprays from the game.

.svg or .png is good for me. I know CascView can do it somehow (according to CascView's website), but I have no clue how to work CascView. At all.

Specific spray in question I'm looking for a rip of is
A guide on how to do this myself or someone posting em up for me would be heavenly.

Thanks, nerds