Granblue Fantasy グラブル - Athena, Summer Io, Anila vs Tiamat Omega Impossible/HL

I wanted to do a bit of testing on Magna 2 bosses and to be able to do that I need to farm those cursed crystals from the Magna 1 HL bosses so I thought I could as well try some new combination and improve over my time of farming these ones.
This is my best time between those I recorded with 10 minutes and 22 seconds and 20 turns. The second best was this run ( https://www.youtube.com/watch?v=zQM6ZPwZiKk ) that took 10 minutes and 40 seconds.
I really need to get myself to do The Sun summon as well if I want to lower these numbers even more (currently doing Death).