Edit: or is this teamstacking with the heroes?
The game was:
Infinity, Katelin, RV29 and a Korean player (Hakurei)
vs
panda, Dormio, a Korean player and myself (Moriya)
Hakurei did picks, Moriya did all in-game random, Moriya randomed:
Keine (me)
Reisen (panda)
Murasa (Dormio)
Utsuho (Korean player)
I'm pretty sure it was player teamstacking