Revisions for post #34179

As is widely known, for participation in the bosses are taken into account:
Damage inflicted / XP gained
The damage received
Healed damage
(I can't think of anything else)

Relatively recently, I witnessed where the person who did not inflict the most damage received the rarest item.
The difference in experience received gained was about 3000-5000.

I can't tell which category the aforementioned person was in, and neither can she, hence the question.

Which category matters the most? Is it pure luck?

As is widely known, for participation in the bosses are taken into account:
Damage inflicted / XP gained
The damage received
Healed damage
(I can't think of anything else)

Relatively recently, I witnessed where the person who did not inflict the most damage received the rarest item.
The difference in experience received was about 3000-5000.

I can't tell which category the aforementioned person was in, and neither can she, hence the question.

Which category matters the most? Is it pure luck?