the last boss, that unlocks sector x, should be different (and have a different summoning item) for each race, and should be spawned at a specific environment. i have come up with ideas for the human and hylotl bosses: human: a giant tentacle monster, summoner is made from tentacles, best tier material (is tier 10 impervium?) and other stuff. hylotl: floran army, haven't come up with a recipe yet, summoned in jungle, there will be multiple florans that you have to beat on your own, and a much larger floran boss (tier 8 ish but much tankier) guarding a spawner that spawns florans. hope the devs read it, and i'll also post it on reddit to make sure!