Best place for this trial is Arrapago Reef. Go to cutter coast. There are 8 Ephramadian Shade. Wait for dark weather and kill them. You shouldn't get any problems. Sub /whm to reach camp and for pulling with dia.
Pro: You can benefit from dark weather (which is there extremly often) Ephramadian Shades do not link or aggro to magic. You can easely kill them within their respawn time.