- "We fight together. That's what gives us power. A Shinigami and a Zanpakutō spirit combine to make one. We are only able to display our true power when our souls are in harmony with one another. Your foolish pride caused you to abandon the one you need right now. Alone, you cannot defeat us."
- ― Senbonzakura (Bleach)
- "A Meister and a weapon are like an electric guitar and an amp.The sound (soul wavelength) that comes from an electric guitar (Meister) by itself is rather faint...But when you connect an amp (Weapon) to it, the soul wavelength is amplified, giving it a lot of power."
- ― Shinigami, Soul Eater
- Soul Tuning
- Tamashi no Kyumei
- Soul Resonance (Soul Eater)
User can harmonize their soul with other souls, synchronizing and multiplying spiritual strength of all participants.
- Requires synchronization of all member.
- May be limited for how many can be synchronized at once.
- Effects may be temporary.
- Hecate (Shakugan No Shana)
- Meister with weapons (Soul Eater)
- Crona with Ragnarok (Soul Eater); scream resonation
- Users of Soul Menace (Soul Eater)
- Megaman.EXE (Megaman Battle Network)
- DigiDestined Ones and their Soul/Beast Form (Digimon Frontier)
- Bull Black (Seijuu Sentai Gingaman)/Magna Defender (Power Rangers equivalent; Power Rangers Lost Galaxy)
- Shamans and their Spirits (Shaman King); via the Over Soul
- Ash-Greninja (Pokémon)
- Soul Gem (Marvel Comics)
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