In Campaign, scavenge ammo from 15 enemy corpses within 3 seconds of killing them

As Arthur, give 15 different commands to your allies

Reached the Mountain Shrine.

Found Toshi's Harpoon Relic.

Found Toshi's Incense Relic.

Hit 3 enemies with a single Multi-shot.

Learned the Dash Ability.

Found Adira's Village Heart Relic.

Found Adira's Hammer Relic.

Discovered the Farm.

Learned the Bomb Ability.

Found Taro's Lantern Relic.