Guardian Tales Raid - Ameris - Tinia - Kamael - Dabin vs Gast (82) 

Another not fun rng-heavy boss
Tinia/Dabin aggro at start, Kamael missing hits, laser issues.
Try to always kite Gast towards Kamael, and put laser in corner
Chain 1:
Ameris 1,3
Dabin 0,8 + WS
Kamael 1,1
Tinia 1,1~2,5 (after mark if possible) + WS
Chain 2:
Ameris 1,3
Dabin 2,3/2,5 (Don't cancel her hit)
Kamael 1,1
Tinia 2,5 + WS