Droomzen

The second strongest Aircraft-type enemy, the Droomzen has quite high stats, and still retains the Single-Loaded Gun skill from its predecessors, the Melchior and the Valhallan. It can also use the Flame Thrower attack, which causes Fire-elemental damage to all the vanguards. However, it also kept the Induced Explosion passive skill, so make sure to defeat it quickly, not only to avoid receiving damage, but also to give a nice hit to all of the enemies present.