In order to gain this achievement, you must capture the Prism Hercudrome
. This creature is Endemic Life
available on many of the areas within the game, but it will only spawn at Dusk or Dawn
. In order to change the time of the day, just keep playing the game, and travel between Astera and your expedition until you get dusk/dawn. Endemic Life cannot be killed, and can only be captured with a capture net
They only spawn in specific spots, but the best areas to find them is in Area 2 of Ancient Forest
or Area 10 of Wildspire Waste
. They will spawn on a specific large tree, barely move, and are easily caught.
See the video for more information: