Of these, Lampylumen Myriad is the strongest Main Echo , dealing high Glacio damage with its Echo Skill. For the rest of your Echoes, we recommend using two three-cost Echoes and two one-cost Echoes to fill out your total cost. This will also let you stack more Glacio DMG through substats, which we'll take a look at be Boss Guides Lampylumen Myriad Boss Tempest Mephis Boss Mech Abomination Boss Inferno Rider Boss Bell-Borne Geochelone Boss Dreamless Boss (Weekly Boss) How To Defeat Scar (And Get...