Mortal Shell 2 Tarstones: Effects, Sources, and Build Pairings
Understand Tarstones as build decisions: what changes, who benefits, and what to test before spending a rare piece.
Do not spend a Tarstone because a tier list calls it strong. Match its effect to one weapon job, one Shell mechanic, and one arena, then keep a fallback if the interaction is disappointing.
5 sources · reference table included · Exact effects and values remain version-sensitive unless sourced.- A target activity
- The weapon or Shell you will test
- A safe comparison encounter
The useful details at a glance
Use these rows before opening a long route. Status tells you what is confirmed and what still needs a retail check.
Do this in order
Three short actions to turn this page into a usable run. This page stays text-first because no exact visual was verified.
Start with the problem
Write the enemy or route problem first: reach, posture, recovery, status, or damage. A Tarstone is only useful when it answers a real problem.
Match it to a Shell and weapon
Check whether the effect reinforces the chosen Shell mechanic and weapon job. Keep a neutral fallback until the interaction survives a real encounter.
Spend after a two-run check
Run the same arena once for survival and once for speed. Record what changed before recommending a rare Tarstone to another player.
Read the effect in context
Ask which attack, recovery loop, Shell mechanic, or arena the Tarstone changes. Keep effect text, source, and recommendation separate.
Pair it with a weapon job
Use a Tarstone to reinforce reach, posture, control, burst, or sustained pressure. If it changes the job, explain the new risk.
Save rare pieces until the route is known
If the source does not show acquisition or cost, keep the value unknown instead of encouraging a wasteful spend.
How to test a Tarstone without wasting it
Write the problem first: are you short on reach, posture, recovery, status control, or damage? Then pair the Tarstone with the Shell and weapon that actually produce that problem.
Run the same encounter twice—one run for survival, one for speed—and record what changed. If the effect only works in a perfect opening, keep a neutral fallback and do not call the Tarstone universal.
The Tarforge page is the next stop for the resource side. It explains whether the station is fully active and which material or coin gate you still need.
Tarstone test card
Use the same fields for every recommendation so effects are not confused with hype.
| Field | Test |
|---|---|
| Problem | Which enemy, route, or recovery issue does it solve? |
| Pairing | Shell mechanic plus weapon job. |
| Cost | Exact value only after a retail check; otherwise mark unknown. |
| Proof | Same encounter tested for survival and speed. |
| Fallback | Neutral Tarstone or lower-risk route option. |
Quick answers
Should I spend a rare Tarstone immediately?
Only after you know the activity, pairing, and fallback. Test the same encounter twice before calling it a good fit.