Isabelle: "Today you are facing a particularly nasty magico. This is an ice/necromancy mid/high-ranked magico, code name: Bonechiller. Bonechillers are created when new cores are left in a place where somebody died from exposure to the elements. Somehow the core absorbs the physical residue of the dead person and then transforms into a magico in the image of the deceased. They have most of the memories of the dead person, but they are really just inhuman monsters. Their first victims are almost always the loved ones of the deceased..."
Natalie: "That's awful."
Alice: "Any advice on how to deal with it?"
Isabelle: "Its body is mostly made of ice, so fire should be a good choice. But be careful, Bonechillers are adept spellcasters."
Natalie: "Leave it to me, I will punish this evil ice monster!"
| HP | MP | ATK | DEF | MAT | MDF | AGI | LUK | EVA | NUL |
|---|---|---|---|---|---|---|---|---|---|
| 3400 | 100 | 30 | 31 | 40 | 38 | 32 | 42 | 10% | 0% |
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|---|---|---|---|---|---|---|---|---|---|---|
| LWk | - | - | - | Wk | Wk | Im | - | - | - | Im |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| - | Rs | Rs | Im | Im | - | Im | - | Im | Im | Im | VRs | - | - | Im |
Spells and Abilities:
- Attack (Blunt damage)
- Double Attack (Blunt damage)
- Crackling Lightning
- Freezing Cloud
- Freezing Curse
- Icy Grasp
- Mass-Curse
- Necromancy (At 50% HP)
- Venomous Glyph
Spells and Abilities - With Wraith:
- All previous skills
- Arcane Armour
- Force Shield
- Mana Dispersion
- Sleep
Drops:
- 1000 lumes
- Ice Core
Bonechiller is the magico boss of the Ice Sanctuary dungeon. This half-frozen creature lashes out at her enemies with several Ice themed attacks, as well as some Thunder, poison, and a variety of STAT Down effects. However, nothing she can do packs much punch. While she has a marked weakness to Fire damage, attacking her with anything but ice skills should prove effective.
For the first half of the battle, she will attack with a restricted set of spells. Once you get her HP to 50%, she immediately casts Necromancy, summoning two Wraiths and an Icy Guardian. These additional foes will make things more difficult if you let them live long enough. Once they arrive, prepare defences and try to take them down as soon as possible.
The highest priority target among the summons should be the Icy Guardian. It by far has the lowest amount of health, and is the most annoying with its variety of support techniques, including Icy Ward which renders all of its allies temporarily immune to fire. A couple of physical attacks should take it out in short order.
After the Icy Guardians you should next turn your eyes towards the two Wraiths. It is the presence of these Wraiths that actually enables Bonechiller to user her expanded moveset, and she will revert to normal after they both die. Bonechiller's additional moves are actually not a concern, and if anything they dilute her move pool and make her weaker. However, the Wraiths themselves are capable of dealing very large amounts of damage, and are not worth keeping alive just to make Bonechiller a little easier while you try to whittle away at her huge amounts of health as they in turn will be falling on you like a sack of rocks. As long as the Icy Guardian is dead, Natalie should be able to deal with the Wraiths using her fire.
Once all the additional enemies are dead, just keep working away at Bonechiller herself. Keep at it and you'll defeat her eventually, earning yourself a brand new Arcano Core (which Yoshida will immediately steal).
Losing the Battle
If the party loses, Eric(a) will be left behind as the party teleports away. Bonechiller will discover their secret and decide to fix it with a massive application of ice magic. Eric(a) will then be teleported back to camp and nursed back to health, but the magical shrinkage will be permanent, leaving you with a rank of the Penis Reduction Transformation.
Note that having this particular stage of the Penis Reduction Transformation will be accounted for if you siphon the Ice Core later, and it will only give you one stage of the transformation instead of the two without this transformation. This means that losing to Bonechiller for the transformation is not necessary if you plan on siphoning her core later.