People complain about rewards for world boss.
When HC add's mail sys - simlure many other game get mail with reward chest for assting in kill.
all get reward my it be gold ot item randoum each person help % of dmg done requred get reward.
Over Sovle issue of lack of instevie kill them - As each person who help kill boss get reward.
noted when mail is add to game make this possible easy implent with mail sys.