Thunder Dragon Claw

Reviewed for Patch 1.0.503Last updated: August 24, 2026

Thunder Dragon Claw relic guide for Pass the Fear: add Lightning and Transmutation damage to a gun when the route can repeat bullet hits.

QUICK ANSWER

Identify the object first, then decide whether its trigger is already alive in your run.

  • Read the practical pick rule
  • Check the connected tags and related items
  • Test the slot in the Planner
VISUAL INDEX04 ICONS
Weapon
Weapon
Relic
Relic
Skill
Skill
Tarot
Tarot

Identify the object first, then read the decision behind it.

Relic

Thunder Dragon Claw

Epic · Updated for patch 1.0.503

Quick answer

PICK IT WHEN

Take it when your current route already produces the lightning, disruption, reliable signals. The value comes from repeating that event, not from the item name or rarity alone.

WATCH OUT

If none of its triggers are happening yet, keep the slot open for a pick that strengthens the engine already on screen.

INDEPENDENT RUN NOTE

Thunder Dragon Claw rewards a gun that keeps the bullet loop alive

Thunder Dragon Claw is an enabler, not a blind damage pick. Its current effect adds Lightning to Bullet Damage and counts that bonus as Transmutation, while its Ultimate trigger adds more Transmutation Damage. The slot makes sense when the run can repeat bullet hits and the route can use Disruption.

Route fit

Use it in a Lightning/Disruption or cross-weapon route when the gun already fires often enough to create repeated bullet events. A non-Lightning weapon can still use the added Lightning identity; the rest of the build must keep the hits coming.

Boss

A long boss phase gives repeated bullets time to convert into more Lightning and Transmutation events. If reload gaps or movement stop the gun, fix uptime before adding more conditional scaling.

Crowd

It helps a gun keep pressure across a pack, but it does not replace room coverage. When enemies are spreading or contact is the failure point, add frequency, volley, or safe movement before another single-target payoff.

If it is missing: Keep the current weapon and choose Fire Rate, reload, or reliable room coverage. Do not abandon a working element just to preserve a relic whose bullet trigger is not happening.

What to check: In one normal room and one boss window, check whether most shots are landing and whether the added Lightning is producing useful Disruption. If the trigger is rare, the missing piece is uptime or a different route, not another multiplier.

Test Thunder Dragon Claw in Planner

What this item is trying to do

Thunder Dragon Claw is not a universal upgrade. Its route tags are lightning, disruption, reliable, and that combination tells you what kind of problem the entry is meant to solve. Start with the current effect, then check whether your run is already producing the event that gives the entry value.

This page treats the effect and route connections as a decision aid, not as a promise of a fixed ranking. The current effect reads: “·On Ultimate:Transmutation Damage +25%. ·On Bullet Damage: Adds 80 Lightning Damage, which is also considered Transmutation Damage.” That wording matters because a rarity label can stay the same while the route around it changes after a patch. The practical question is whether Thunder Dragon Clawimproves the run you have, at the moment you can actually take it.

What the effect means in a run

A relic is a slot decision. It can be powerful and still be wrong when its trigger is not part of the current route or when another slot fixes a more immediate failure.

lightning entries are more useful when the route can create repeated Lightning events rather than one isolated proc disruption entries depend on repeated Lightning-linked events and should be checked against the current patch text reliable entries have value because they work without a perfect sequence of offers, which makes them useful during a pivot

The route connections point to the trigger it is explicitly connected to. It is also connected to no named Hunter route uses this entry as a core choice yet. Those connections are clues, not automatic instructions: a skill can be listed for a Hunter and still be the wrong answer when that run has a different immediate bottleneck. Compare the entry with the other offers on screen before spending the slot.

Early, middle, and late run decisions

Early run: prove the trigger

Early in a run, take Thunder Dragon Claw only when you can say what it will do in the next few rooms. Take it when your current route already produces the lightning, disruption, reliable signals. The value comes from repeating that event, not from the item name or rarity alone. If the entry needs a second item, a particular element, or a later checkpoint, mark that dependency and keep a simple fallback in mind. An early pick is valuable when it starts a route or removes a failure that is already happening; it is fragile when it asks the run to become something entirely different.

Middle run: check whether the route paid back

In the middle of the run, stop judging Thunder Dragon Claw by the promise of its text. Look for the event it was supposed to improve: more useful shots, more controlled rooms, a cleaner boss window, or a safer route through the next checkpoint. If that event is not showing up, the correct move can be to keep the item as a placeholder while changing a support slot, or to pivot before the run spends another choice on the same idea.

Late run: protect the win condition

Late in the run, Thunder Dragon Claw should have a job that can be named in one sentence. Keep it if it contributes to the trigger it is explicitly connected to and the effect is still active in the actual loadout. Replace or ignore it when the route has already solved that problem and a missing survival, reload, or target-coverage answer is now more likely to end the run.

Boss, crowd, and fallback use

For bosses, ask whether the entry improves sustained access to the target or only creates a brief high roll. For crowds, ask whether it reduces the number of dangerous enemies that remain after one action. Thunder Dragon Claw has no explicit boss-or-crowd label here, so use the trigger and effect text to decide where it belongs.

If Thunder Dragon Claw does not appear, use a replacement that preserves the same job rather than chasing the exact name. Related entries include Overloaded Coil, Thunder Crown, Shock Round, Thunder Hand. A lower-ceiling option that keeps the element, trigger, or survival plan intact is usually a better fallback than an unrelated rare drop. If none of its triggers are happening yet, keep the slot open for a pick that strengthens the engine already on screen.

How to test this pick without inventing DPS

  1. Write down the current Hunter, weapon, active tags, and the reason the run is considering Thunder Dragon Claw. Do not change several slots at once; otherwise the result cannot tell you what helped.
  2. Open the Planner with Thunder Dragon Claw selected and read the synergy explanation. Confirm that the entry is connected to a real trigger, not only to a shared word in the tag list.
  3. Test one crowded room and one durable target when the route reaches them. Record uptime, missed triggers, reload gaps, and the moment the run becomes safer or more fragile. A single run is an observation, not a universal damage measurement.
  4. Reopen this page after the next patch and compare the current effect with the previous one. If the tooltip changes, downgrade the advice until the interaction has been checked again.

Limitations and the next decision

The planner does not claim a measured DPS ranking for Thunder Dragon Claw. It explains route fit from the current effect, tags, element, Hunter links, and evidence label. That is deliberately narrower than saying the item is always best. The useful output is a reasoned next choice that you can verify in the run.

If this entry fits, load it into the Planner and compare the next skill, relic, and Tarot choice. If it does not fit, return to the item library, filter by the missing trigger, and choose a replacement that fixes the failure you can actually see. That loop is more reliable than copying a static tier list without checking the run state.

Route guidance

Current effect text

·On Ultimate: Transmutation Damage +10%. ·On Bullet Damage: Adds 30 Lightning Damage, which is also considered Transmutation Damage.

Forged effect

·On Ultimate:Transmutation Damage +25%. ·On Bullet Damage: Adds 80 Lightning Damage, which is also considered Transmutation Damage.

What this entry connects to

Need to see the interaction in a full loadout? The Planner scores the tags and element together, then flags conflicts instead of pretending it has measured DPS.

Test this decision in the Planner →

Related picks

This page brings together the item's current effect, route connections, and practical tradeoffs. Compare it with the in-game tooltip after an update, then revisit the route. See how the sources are used.