Uh nice info Hoffs but WAY WAY off - there is a recent post from a dev stating that the roll for drops is ONE chance for each boss - party or not is irrelevent I will link the post in a few.
Lorgus was kind enough to answer to a post about drops on certain critters, Slasher, Medusa, Narvey and the items they might drop; Night Eyes, Slither, Tangle, but it ended up being a complete dead end.There are players who have spent HOURS (days and prob months) killing Medusa and have yet to get a Slither. Same goes for Tangles off of Narvery. Then there are some player who wander in for the first time and Wala Slither / Tangle.As a long time player and killer of both of these bosses in particular I think we are entitled to finally get and answer to why these drop or don't. Also what is the value of items on each critter ex; stone dragons tooth - slither of off Medusa?Or it is time to implement Doom rules (time, # kills) to produce a drop.TY Lorgus for trying but since you aren't there anymore someone in the know needs to produce some answers. (weins201)
Phoenix: These bosses have very low chances of generating special drops that include SoTs, certain artifacts, and some other things. On each death, the boss makes ONE roll to drop a special item. If the item is generated, then it is given to a random top attacker. So, even in a small group, your chance of getting the special drop is close to 1 in 100, and the chance of getting the specific drop you want is even smaller. It’s straight probability, with no weighting or anything. This means that on rare occasions someone might get the perfect drop the first time they fight. But due to the nature of probability, these items are never 100% guaranteed to drop. For example, for an event that happens 1 time in 500, then there is a 13.5% chance that the event will not happen in 1,000 consecutive trials. But, it could also happen more than once – for those same odds and 1000 trials, there is a 0.5% chance that the event could happen five times, averaging one every 200 trials.
When events have low probability of happening, it takes a very large number of trials before the rate of occurrence of the event converges to the actual odds.
TL;DR: Lady Luck is fickle.