Upon completion of the second Arena Campaign - levels 11-20 - you will unlock this achievement.
Levels are as follows:
11: Barrels
12: Balloons
13: Barrels (Dragon Nest Achievement upon first completion)
14: Potion
15: Barrels
16: Buttons
17: Barrels
18: Spotlight
19: Balloons
20: Barrels
Bleep bloop.