indeed it was great fun!. for a newbie like me, who did all these monsters the first time, it was a bit learning by dying, but it was great fun and a very good lesson!
thank you!!
Well, to explain the mechanics of Osireadon a bit; Frodo gave me some of his rare white nets from pulling up Messages In A Bottle at sea. At GM to 120 fishing skill there's a 1 in 4 chance the white net is him, but it can also pull Leviathan or just a lot of Kraken instead. In this case, I sailed over to Deep Water and cast a net, and got him first time. Then I pulled him back to the docks on my Orc ship, jumped off so he followed me into you lot, then (after much running about trying to get rid of a Revenant that mysteriously appeared) I pulled the ship in behind him to stop him running about.
Normally he'd attack the ship too (as does Charbydis the other High Seas aquatic adventure) but you lot were doing so much damage he stayed by the docks. I was hitting him with my cannon; an Orc ship with 150% damage and Heavy Cannon Balls does 1300 hit points per blow, which is why he was having sudden hit point drops, but then I realised I'd ran out of fuses for the cannon, and hadn't any more handy, bah.
Osireadon has anti-life leach code, summons eels that leach life from you, and throws patches of blue acidic water about that damage you if stood in them. If you're not good at hitting him directly, you can heal other people's pets or clear off the snakes for the team... or if you have any cannon ammunition you can fire from a boat too; I don't leave the cannon public on my own ships anymore as there is one particular saddo who disarms them at public events and takes the ammo, but if you'd have brought up a boat you can get two or more facing nose inwards and fire at him when he crosses your path!
At Medusa, I was the bard running around constantly, you can see me casting Vas Corp Por in the screenshot. Medusa clones any pets or summons that are about (they'll show red as "Name (Evil)", and petrifies you in place occasionally; direct damage is more useful there then, but I was discording her to make her easier for others to fight. Discord works against Osireadon too, but you'll need 120 music and 120 Discordance and GM or better instruments to stand a chance against either.
The party mechanics were that we all get credit as a team by the time her health is down to 50%, so we all get looting rights; but by splitting the party after that it forces it to randomly place it on a particular individual player's version of the corpse, otherwise the fastest looter gets first pick every time as the team all sees the same single lootable corpse. More modern games have random Need or Greed rolls instead