Spell Chip Guide - Single, Area & Defense
Every spell chip in the Kernel Hearts game: effects, KB costs, where to craft them and which fights actually need them.
Published September 18, 2026 · Last updated September 18, 2026
Quick Answer: Which Spell Chips Do I Need?
The Single-target Spell Chip covers everything on Floor 1. Beyond that: the Area Spell Chip for the Floor 2 Guardian phantom phase, and a Defense Chip for Courtyard survivability when enemies close in.
| Chip | Effect | KB Cost | Craft At |
|---|---|---|---|
| Single-target Spell | Focused damage, low KB | 16KB | Tutorial reward |
| Area Spell | AOE damage, phantom clearing | 48KB | Laboratory hub (Courtyard Materials) |
| Defense Chip | Damage reduction, 30s | 32KB | Laboratory hub (Courtyard Materials) |
Why Area Spell Matters for Floor 2
The Floor 2 Guardian spawns two phantoms at 60% health. The Single-target Spell takes too long to clear both; the Area Spell kills them in one hit. This phase is the game pop quiz on the weakness system, and the Area Spell is the answer.
Defense Chip: The Underrated Survival Tool
The Defense Chip reduces incoming damage for 30 seconds at a cost of 32KB. The Floor 2 Guardian fight runs five to eight minutes and is decided in the second phase, when curse floors and slam waves pile up. One well-timed Defense Chip activation covers the whole second phase.