Quest Hunter

Choose this game mode from the survival menu.

You start as a fresh new character, while every level completed will open up a new chest and give you a new player level with points to distribute.

Before starting, go around the map and clear all trees and rocks to make sure you wont get stuck later on. Dont hit the tombstones as the skeletons who will spawn will be too strong yet. Go around the edges of the map and dig out the secret chests. Add HP recovery items to the quick slot, while your area attack to the quick skill.

Once ready, pull the handle in the middle to start the level. Enemies will come through the gates in the 4 corners of the arena. The strategy is to never use melee. Run around the map, pull all enemies then kite them around the map untill your kill charges. Use it killing 1-2 followers then continue.

At the end of each level, your HP will fully restore, you'll level up (increase only max HP), open a new chest. Unlock the first skill that damages are in front of you, replace the area damage and use this one from now on till the end while kiting the enemies. Upgrade it between rounds whenever you can. For the last 2-3 levels you can speed up by tossing the bombs to the group of following enemies.

You can literally complete 9 waves without using your sword or ever getting hit.