Weapon
- Crossbow (mana for headshots upgrade)

Traps
- Dwarf (bleed upgrade)
- Archer (healing upgrade)
- Swinging Mace (stun upgrade)
- Spike trap (bleeding upgrade)
- Web trap (increased normal damage upgrade)
- Steam trap (chill upgrade)
- Flame Scorcher (longer burn upgrade)
- Barricade

Trinkets
- Trap Reset trinket

Single player mode:

Needs to be done in Single Player. Otherwise you won't have enough traps to get the required combo points!

Initial wave:

Close up the right side with barricades, so the enemies will have to go through the killzone to the left that is shown on the screenshot.

The setup:

Steam trap followed by Spike trap and Flame Scorcher trap. Web trap on the left. Swinging Mace on the top. Dwarves and Archers in your safe zone. Shoot the enemies with your crossbow right before they would die, to add in another combo point.

Chill, stun, slow, bleed, burn and the traps' weapon hits, soldiers' weapon hits and your Crossbow hit would exactly add up to x10 combo multiplier. The hard thing about this achievement is, that the enemy has to die, while all the multipliers are still active - so it might take a few tries with this setup - personally I got it on my second run of Breakneck Triad with this.

The setup would also work on other levels. Breakneck Triad is good for this though, because it has a lot of big enemies, which have enough health for all the traps to trigger on them!