Neunwelt Tactic

Kuo Shenlin passing a Magisphere to Kaede Johan Nouvel as they perform the Neunwelt Tactic

The Neunwelt Tactic (Neunwelt is German for Nine Worlds), commonly known as just a Neunwelt for short, is a combination attack where several Lilies pass a special bullet between their CHARMs and infuse it with their Magi to create a Magisphere. The final Lily fires the Magisphere at their target, causing a powerful explosion capable of instantly destroying most Huge caught in it.

The Neunwelt Tactic only became popular recently, beginning in 2050. Before this, Lilies normally dueled the Huge one-on-one, and had to use B-type Armaments to kill more powerful Huge. They were known as the Dueling Generation, while younger Lilies are known as the Neunwelt Generation.

Special-type Huge can sometimes withstand a full-strength Neunwelt, often by using Magi-Reflector, but occasionally by absorbing or destroying the Magisphere. The most common countermeasure to this is to launch multiple Neunwelts in rapid succession, but this requires multiple legions, and Neunwelts are highly taxing on Lilies to perform. Any Huge capable of surviving a Neunwelt is thus an extreme threat.

Numbers

The optimal number of Lilies for the Neunwelt Tactic is nine; this strikes the ideal balance between the power of the final attack and the difficulty of performing it. The Lilies must be well-coordinated with one another, so usually a Neunwelt is performed by a single legion with experience fighting together.

Because another way to boost the power of the Magisphere is to pass it close to a powerful specimen of the Huge, it's sometimes still possible to perform a strong Neunwelt while short a Lily or two.

Alternately, if a legion doesn't anticipate encountering particularly strong enemies, they can use the Neunwelt Tactic with as few as five Lilies to destroy lesser ones (such as Large-types.) This is common in Tokyo, Japan and other well-defended regions. These are more properly known as Fünfwelts and Siebenwelts and the like, but "Neunwelt" is a general term for all variations of the attack.

It is possible to do a Neunwelt with more than nine Lilies. This is often necessary to be certain it will destroy an Ultra-type, with one example being at the end of the Odaiba Counteroffensive, where 23 Lilies did the final Neunwelt to take down the Nestless Ultra. Doing a Neunwelt with more than nine Lilies is challenging, as with every further Lily who charges it, the Magisphere becomes harder to control, and passing and even holding onto it is increasingly difficult. For unclear reasons, Laplace and its subskill Charisma make oversized Neunwelts easier for Lilies to do.

Other Variations

Lilies from Sielulintu use a variant of the Neunwelt. It is unknown if the variant has a name, but the CHARM OS that enables it (designed by Linnunrata Electronics) is called the Vappunaatto OS.

The Vappunaatto OS differs from the standard Neunwelt OS in that the Lily who fires the finish shot must first absorb the accumulated Magi fully into her CHARM. She can then fine-tune how she releases that energy, making the attack either more effective against a single target or alternatively against a large group. However, doing this is extremely harsh on the Lily's body, and is thought to be one of the reasons why Sielulintu's Lilies are rarely in good physical condition by the time they graduate.

Only the finish shot is different between the Vappunaatto OS and the the standard Neunwelt OS, so Lilies with the two OSes installed can team up to do a Neunwelt together with no issues.