March of Sacrifices Golden Indrik achievement mini guide

I did March of Sacrifices on normal with a pug, we didn't figure a lot of things out about the bosses, but the fights seemed mechanics-heavy, so it will probably be very hard on vet. We did figure out something however: there are three spots outside of the main path, that each hide a golden indrik; when you kill all three you can get an achievement and a memento that transforms your character into a WW (with a pretty brutal animation ^^;). To reveal the indrik you must first find a wisp before entering the site: the wisp will create a green circle in its entrance, members must crouch in it, and then someone presses the synergy and the wisp will travel, creating more of these circles, which someone must go stand in and press the synergy for the wisp to keep going, until she finds the golden indrik. All the members should crouch during the search, while avoiding environmental hazards that cause you to teleport high and fall to the ground (I'm not sure, but I think fall damage was increasing with subsequent falls, though that might have been my impression ^^;). After getting the achieve we went around Wayrest and used the memento, to startle passers-by xD