|Primary caster||Lord Dearche|
|Magic system||Ancient Belka|
|Japanese name||ダインスレイヴ |
|First app.||Gears of Destiny|
It is visually similar to Maneuver A.C.S, a far-to-close assault used by Nanoha Takamachi and Hayate Yagami with the help of Accelerate Charge System, but it is not known whether Dáinsleif also involves A.C.S and if it is a substantial copy of Maneuver A.C.S.
Dáinsleif is Dearche's cross-range finish C in The Gears of Destiny. It drives her to the long range after piercing through the opponent, which is opposite to Hayate's long-to-cross-ranged Maneuver A.C.S in the same game.