Every third ability cast will Echo, casting it again. Casting Seraphine's abilities grants a Note to nearby allies. For each Note, Seraphine's next basic attack gains Attack Range and bonus damage.
1
HIGH NOTE
Seraphine deals damage in an area, increased by enemies' missing Health.
2
SURROUND SOUND
Seraphine shields all nearly ally champions and grants them Movement Speed. If Seraphine is already shielded, nearby allies are healed, increasing for each ally.
3
BEAT DROP
Seraphine deals damage and slows enemies. If the enemy is already slowed, they are rooted instead. If they are already rooted, they are stunned instead.
Ult
ENCORE
Seraphine deals damage in a line, charming and slowing enemies. Encore extends if it touches an ally or enemy champion.
Ability descriptions from the official Wild Rift website.
This page is for League of Legends: Wild Rift (the mobile game), not League of Legends on PC. A Japanese version with guides and matchup notes is available: 日本語版.