Quick Answer
Quick Answer
Proto Killer is a high-priority yellow Memory for wind physical builds and early accounts that need a sturdy, attack-friendly support piece. Farm it when the Proto Killer Shrine is available, then upgrade it after your main weapon and carry plan are settled.
Memory Data
| Field | Current value |
|---|---|
| Display name | Proto Killer |
| Memory type | Machine-family shrine Memory |
| Memory category | Shrine Memory |
| Color / slot fit | Yellow; best in yellow-compatible or flexible Memory slots |
| Main effect | Starts the holder with a wind ball skill and increases wind physical damage by 10% |
| Stat profile | High HP, attack, defense, and spell defense for a physical support Memory |
| Acquisition | Proto Killer Shrine reward or drop when the shrine is available |
| Player priority | SS tier / safest keep |
| Best player use case | Wind physical carry, Warrior-style physical setup, or broad early progression slot |
| Closest comparison | Lemon Slime for flexible comfort; Akumashinkan for another damage-focused shrine Memory |
Effects / Stats
Proto Killer is strongest when the holder actually benefits from wind physical damage. The stats also make it useful before your final build is perfect, because it gives real durability alongside attack.
| Stat or effect | Current value |
|---|---|
| Cost | 84 |
| HP | 177 |
| Attack | 85 |
| Magical attack | 33 |
| Recovery magic | 22 |
| Defense | 99 |
| Spell defense | 66 |
| Dexterity | 40 |
| Opening skill | Starts the holder with a wind ball skill |
| Damage bonus | Wind physical damage +10% |
How to Get
Proto Killer Shrine unlocks after Story Chapter 4, Stage 10, and each run costs one Shrine Key. Enter only when you have keys to spend and the listed reward improves your build. Do not spend stamina chasing it while the shrine is unavailable or your keys are capped.
Keep progressing story, daily growth routes, or another Memory stage that improves your current build.
Best Uses
Wind physical carry
Use Proto Killer when your main damage dealer can turn wind physical damage into faster clears.
Warrior-style physical setup
The attack and defensive stats make it easier to keep a front-line physical plan stable.
Yellow slot value
It is easiest to keep when the slot color lines up or when your flexible slot needs a strong all-around Memory.
Early progression
The stat spread gives you useful damage and survival while your final Memory set is still taking shape.
Should You Farm or Upgrade It?
Farm Proto Killer when the shrine is open and your account has a real use for wind physical damage, a strong yellow slot, or a physical carry that needs better stats. It is a better repeat target than a random filler stage because the Memory can stay relevant after your first clear.
Upgrade it after your weapon plan is clear. If your best account path is magic, healing, or a different element, keep Proto Killer as a strong option but spend your first scarce upgrades on the Memory your active build uses every day.
Closest Comparison
| Memory | Pick it when | Why |
|---|---|---|
| Proto Killer | You want wind physical damage, attack, and sturdy stats | Best fit for physical accounts that can use yellow or flexible slots |
| Lemon Slime | You want broad comfort before your final build is decided | Easier to justify when you need general utility more than a wind physical push |
| Akumashinkan | You want another damage-focused shrine Memory | Better comparison when your account leans into darker or more physical support |
Related Pages
| Page | Use it for |
|---|---|
| Best Memories Tier List | Current Memory ranking and upgrade priority |
| How Memories Work | Slot color, rank-up timing, and early Memory rules |
| Memory Farming Locations | Choosing which Memory stages deserve repeat stamina |
| Shrine Quests Guide | Checking shrine targets and reward context |
Recent Player Updates
| Date | Note |
|---|---|
| 2026-05-01 | Added Proto Killer Memory player guide with yellow slot fit, wind physical effect, stat profile, shrine acquisition, and upgrade guidance. |
FAQ
Is Proto Killer worth farming?
Yes, if the Proto Killer Shrine is available and your main build can use wind physical damage or strong physical stats. Skip it for now if another Memory directly improves the carry you are already using.
What color is Proto Killer?
Proto Killer is a yellow Memory. Color matching is useful, but the practical rule is still build fit first: equip it when the effect and stats help the character doing the work.
What does Proto Killer do?
Proto Killer gives strong physical-leaning stats, starts the holder with a wind ball skill, and adds wind physical damage. That makes it best on a physical setup that can actually use the wind bonus.