Pie ftw amirite? Honestly, I love this idea, its well thought out, not extremely over powering, and seems to me like a good deal of teamwork would be needed which I think our bosses lack in runescape so far. The only boss we have that really REQUIRES teamwork to defeat is the penance queen from the minigame Barbarian Assualt. The rewards don't seem to be over powered at all, though I think it would make a big difference to the battlefield on games like Castle Wars, Soul Wars and Clan Wars, if someone has an etheral staff. Maybe have some sort of decay rate to stop a player camping a ton of mage xp, or a lower experiance rate, as it could easily bring a much cheaper way for 99 magic and hp for a lucky/rich player. Imagine the carnage one level 138 could cause with a full set of dark armour, and an etheral staff of (insert here) though. :o All in all, 100% support, great idea, well thought out, whens it being put ingame? :