Doesn’t seem to be clear on Dododex but the lio is quite useful if you’re looking to farm blueprints or other higher quality loot. The tame lasts 30 minutes, yes, but the status effect to boost your loot lasts SIX HOURS. It’s very rare but if you find and successfully tame it you have six hours to do some extreme looting. It spawns pretty much anywhere in the ocean on every map and only one at a time. From my experience taming them on Ragnarok the loot boost affected anything and everything. I received boosted loot from regular air drops, deep sea drops, desert drops, and cave/dungeon drops. I have yet to test it on other maps but it’s safe to assume the boost is simply universal. KEEP IN MIND, after taming one if you travel to another server you will lose the loot boost. You must tame it on the map you’re intending to farm.