To get this achievement, you must kill five enemies in a row using only one attack on each. While this may seem like an achievement that requires a team with high attack stats, it is actually much simpler than it appears. In Mount Rage, the third area of the game, there is a side quest on the song "Strike Me" called "Critical Hit Challenge." During this challenge, you are tasked with performing 15 critical hits, which is when you utilize elemental advantages against your enemies. What the side quest does not mention is that all non-critical hits do only 1 damage and all criticals do 99999 damage, instantly killing the enemy. By simply constructing a team that does not attack with any passive abilities and covers the elemental bases, you can get this achievement by the fifth critical hit of 15. For reference, I used a team of Gruver, Ralf, Sara, and Pierce, but Clark and Gwen also have non-damaging passives that work as well.