Have your pet deal the finishing blow against 200 Antlions type creatures during Earth Weather or on Earthsday.
- Note: Each kill on Earthsday = 1 kill. Each kill with Earth weather on any day present = 5 kills.
- Earth weather and Earthday = 6 points
Attohwa Chasm is the only real option for this trial, as no other zone has antlions to hunt. There are Tracker Antlions on the west side of the map, which are non-aggressive, and very easily handled at 90+
Trench Antlions are also in the area, and may climb out from the cracks in the ground to attack you as you walk over them, but they're about as strong as the other antlions. So, they may surprise you, but they should not pose a threat.