[Snake]

(Non-piercing projectiles are all fine, 'Jet'-like skills are stacking as you step away, most of the AoE stack-damage happens when your FlotterEnemy is in the bullseye* of the circle)
Miu, Famiunga, Air Pressure* // Mage
Sear*, Wind Slasher // Evoker
Black Bubble* // Hexer
Acid Jet, Fire Jet, Ice Jet //Summoner
Crawling Spikes, Expanding Ice //Verglas
Roundtrip //Soldier
Flamethrower //Engineer
Kagekiri, Toiken, //Kensei