I wanted the goblin purely from a deco perspective as I knew I’d probably be maxed out on most of its drops, aside from the gnomish storyline items. Wanted several for my monster army, so was glad for the low price. As far as mermaid scales, I think it’s just a matter of checking all your water sources and hoping for the best. Can’t think of anything that is a consistent dropper. Some things do,I guess, like the glimmer loch creature, but they generally have timers of several hours, so,if you have enough energy, you could collect from your wells and ponds numerous times before your glimmer loch is ready again. Thus stocking up that way.