Hecate Overview: Unlock the full potential of your Sub-DPS with Hecate, the ultimate echo for coordinated attacks. As long as your coordinated attacks land critical hits, Hecate boosts the ATK of your current resonator. Additionally, its echo effect summons blades that continue to deal damage even when you're not actively fighting.

Nightmare Inferno Rider Overview: Take your battles to the next level with the Nightmare Inferno Rider, an extremely effective attacker that shines when summoned in combat. With a significant ATK increase for 15 seconds after skill activation, this echo can deal up to 270% damage. Moreover, its skill allows for quick traversal in the overworld, making it a versatile choice.

Nightmare Crownless Overview: The Nightmare Crownless is a force to be reckoned with, dealing a whopping 270% damage every time it's summoned. What's more, its skill can be charged up to three times, enabling you to unleash the echo skill multiple times and maximize your damage output.

Nightmare Tempest Mephis Overview: If you're looking for a top-notch echo for your Electro DPS, look no further than the Nightmare Tempest Mephis. To get the most out of this echo, check if your Resonator scales off Resonance Skill or Resonance Liberation – if it's the former, Tempest Mephis is the way to go. As an added bonus, it also grants access to Empyrean Anthem sonata effects, making it an excellent choice for coordinated attack Sub-DPS characters.

Nightmare Thundering Mephis Overview: The Nightmare Thundering Mephis is another exceptional echo for Electro DPS, with its effectiveness hinging on whether your Resonator scales off Resonance Skill or Resonance Liberation. If it's the latter, Thundering Mephis is the superior choice, offering unparalleled damage potential.

Nightmare Impermanence Heron Overview: The Nightmare Impermanence Heron is a specialized echo that excels in Havoc teams, primarily focusing on Sub-DPS. While it may be less flexible than other options, its skill deals an impressive 300%+ total Havoc DMG. However, the normal variants of this echo might be more suitable for non-Havoc team situations.

Impermanence Heron Overview: The Impermanence Heron is a versatile echo that not only increases the Resonance Energy of the equipping character but also boosts the ATK of the next character to take the field. Its skill itself is capable of dealing 300%+ total Havoc DMG, making it an excellent choice for Sub-DPS characters running Moonlit Clouds. Although the nightmare version of this echo has a more limited Midnight Veil sonata effect, it's still a top pick for Havoc Sub-DPS's.

Fallacy of No Return Overview: For the best HP-scaling supports in the game, the Fallacy of No Return is the ultimate Rejuvenating Glow echo. It pairs perfectly with Shorekeeper, the current top healer, and can charge Concerto Energy at an incredible rate by holding the echo button. What's more, resonators can continue to act while Fallacy delivers a flurry of punches, making it an invaluable asset to any team.

Sentry Construct Overview: The Sentry Construct is the best echo for those utilizing the Frosty Resolve sonata effect. Not only does it deal significant damage as an echo, but it also provides echo bonuses without needing to be summoned. This makes it an excellent choice for players looking to maximize their damage output while minimizing downtime.