Give your enemies the axe in Slaz.io. In it, you are but one man and his axe. Toss it at enemies to throw it, and then pick it back up to do it again. Collect squares to level up, and level up with each kill. The higher your level, the more axes you carry.
Steer your character with the mouse, left click to toss your axe, and then right click to dash.
Be sure to pick your axe back up after you toss it.
Your dash is hugely versatile. You can use it to dash in for an easy kill, or dash out for a quick kill. It's also great for retrieving your axe quickly.