Elsword - Casual Henirs #5 (READ DESC.) Duo Speedrun Edition

I thought it'd be fun to try to speedrun Henirs with my friend, but it's really rough around the edges. I dont think I can really call it a speedrun since its pretty messy, but I'd be proud if I got under 9 minutes on it.

Some possible improvements:
1. Shut up
2. Better grouping and timing of blizzard showers
3. Voice communication to coordinate the use of specific strategies and skills
4. Using Heavy Field and Icicle Spear to one-shot rooms combined with Commander's Mark