I have two questions about leeching EXP or sharing the EXP. 1. If two different parties are doing a boss, for example, HT, and they both have attackers, how is the EXP split? Will the party that deals the damaging blow get more EXP? 2. If a leecher brings a mob to 1 HP, and someone else does the damaging hit, does the leecher get more EXP or the leechee?
1) I have not tested this. I recommend you go collect data yourself if you want to know - royals has somewhat custom exp division so unless someone has tested on royals, formulas you find online won't matter. 2) The leecher/damager gets full (100%) mob exp. The last hitter, assuming they're not in a party, gets 20% of its exp. If they're in the same party, then regular exp splitting mechanics apply. If the last hitter is in a different party, they get like 1 exp
Never tested 1) out myself but I would assume the party with more damage gets more exp as how usually in the same party, the highest damage dealer gets the most exp/white.