Imprints (Normal)


Imprints (Uncanny)


Imprints (Lost)

physical_atk.jpg blood_atk.jpg arcane_atk.jpg fire_atk.jpg bolt_atk.jpg
80 -- -- -- 40
slow_poison.jpg rapid_poison.jpg VS_kin.jpg VS_beasts.jpg durability.jpg
-- -- 100 100 100
Requirements & Scaling
strength.jpg skill.jpg bloodtingue.jpg arcane.jpg qs_bullet_use.jpg

Tonitrus is a Trick Weapon in Bloodborne.

" A unique trick weapon contrived by Archibald, the infamous eccentric of the Healing Church workshop.

Striking this peculiar iron morning star flail like a match generates the same blue sparks that blanket a darkbeast.

Unfortunately, for reasons untold, the hunters of Archibald's time did not fully take to the device."

Tonitrus Information

  • This trick weapon doesn't have a "true" transformed mode. Instead, pressing the L1 button will buff it with bolt damage for a short period of time.
  • After a certain time passes, the buff will end, forcing the Hunter to repeatedly buff the weapon in order to utilize its full potential.
  • When transformed, the Tonitrus gets +0.4 Arcane scaling, +70% bolt damage, and +40 flat bolt damage.
  • When you are at full health, the Tonitrus's AR displayed in your character's stat screen is erroneously high. There is no change in damage dealt by the Tonitrus whether you are at full health or not.





Uncanny Tonitrus


Lost Tonitrus


Gem Advice

  • Gems that increase Bolt damage (Bolt, Bolt Damp, Bolt Abyssal and all Cursed variant Blood Gemstones) will significantly increase damage on this weapon when self-buffed.
  • It is possible that gems that increase blunt damage (Adept, Adept Damp and all cursed variant Blood Gemstones) can give a higher net increase in damage than physical ATK gems (upto 32.6% damage increase compared to 27.2%) since all attacks on this weapon do blunt damage. Note: The status screen will show the damage to be lower when blunt atk gems are equipped, however in reality the damage will be much higher. This is possibly because the status screen doesn't count blunt damage but the total physical damage.
  • Gems that increase all ATK such as Nourishing Blood Gemstones give a much higher damage increase because of this weapon's split damage.

To find where to get these gems visit here.


Player Notes

  • The Tonitrus is a simple mace-like weapon that is wielded with only one hand at all times.
    • This trick weapon is useful for builds centering around strength and arcane.
    • Alternatively, it can be used on "pure arcane builds."
    • Since it doesn't have a true transformed mode, the moveset for this trick weapon is more limited compared to many others in existence.
      • It also doesn't have a very fast attack speed when swung.
      • Keep in mind these weaknesses are compensated by the buffed mode when "transformed."
  • When "transformed," it can unleash incredibly potent amounts of damage.
    • The self-buff with L1 adds a fixed amount of bolt damage alongside input from different scalings.
      • The buff works in this formula: +40 Bolt Attack; 1.4x Arcane scaling; 1.7x Bolt Attack.
      • It lasts approximately seven seconds before dissipating.
      • "Transforming" it doesn't consume durability like a normal trick weapon, despite its unique nature.
  • This weapon is tied for lowest durability in the game.
    • It breaks quicker while self-buffed, meaning greater care must be taken to not destroy the weapon quickly while away from the workshop.
    • It roughly loses one durability point every 4-5 hits, which is quicker when compared to the non-buffed form.
    • The other trick weapon that is tied for lowest durability (and breaks quicker when buffed, similar to the Tonitrus) is the Boom Hammer, which is obtainable when you own the DLC.
  • It's considerably useful against opponents that are weak against bolt and blunt damage.
    • Kin-type enemies are noticeably vulnerable to bolt damage.
    • Dark Beasts are considerably resistant against bolt damage.
  • In PVP, smart opponents will carefully watch the Tonitrus and attack during moments when the Tonitrus isn't buffed.
    • By putting increased pressure and aggresion on you, it becomes more difficult to safely "transform" the trick weapon, therefore weakening your damage potential.
    • They're also more likely to strike when you are in the process of buffing it as well, since you are unable to perform other actions quickly and therefore are vulernable to attacks.
    • Don't forget the somewhat slow attack speed of this weapon; opponents will have an easier time parrying your attacks should you swing the weapon carelessly.
    • Ultimately, paying close attention to how long your Tonitrus will remain buffed is the key to defeating an opponent with this trick weapon.
      • You are essentially sacrificing versatility for simplicity and very high damage potential.
      • Remember that you can still use a firearm and/or hunter tool to fight back as well.
  • There is a bug where the status screen shows this weapon's damage to be less when the player is not at full HP, however the damage actually remains the same and this is simply a bug in the status screen. [Note: I'm unsure if this has been patched yet, could use some help here]




  • Tonitrus is a Latin word meaning "thunder."
  • The in-game description classifies this trick weapon as a morning star flail, but it's actually modeled in the form of a mace.
  • The description of Archibald bears many similarities to Nikola Tesla, a famed inventor in real life who specialized in the field of electricity.
    • Nikola Tesla created the Tesla Coil, a device that also bears many similarities to the Tonitrus.
    • In comparison, both Archibald and Tesla were overlooked by the people of their age.
  • The Tonitrus also bears similarities with the aspergillum, a device used by the Roman Catholic Church to sprinkle holy water.
    • According to the description of the Spark Hunter Badge, Archibald was associated with the Healing Church.
    • In this sense, it may have been designed under the themes of "purificiation" and "cleansing" that is associated with many Healing Church trick weapons/tools.
    • However, due to Archibald's fascination with Dark Beasts, it's more likely he designed the Tonitrus as a measure to replicate the sparks these creatures could unleash.
    • In Leviticus, an aspergillum is used to purify lepers, but instead of holy water, the priest uses the blood of a bird.



R: Rally/Regain. The amount of HP regained on an R1 attack immediately after taking damage



80 -- -- -- 40 -- -- 100 100 D E -- D 45


88 -- -- -- 44 -- -- 100 100 D E -- D 47


96 -- - - 48 -- -- 100 100 D E -- D 49


104 -- -- -- 52 -- -- 100 100 D E -- D 51


112 -- -- - 56 -- -- 100 100 D E -- D 53


120 -- -- -- 60 -- -- 100 100 D E -- D 55


128 -- -- -- 64 -- -- 100 100 C E -- D 57


136 -- -- -- 68 -- -- 100 100 C E -- D 59


144 -- -- -- 72 -- -- 100 100 C E -- D 61


152 -- -- -- 76 -- -- 100 100 C E -- D 63


160 -- -- -- 80 -- -- 100 100 B E -- D 65


Average Physical Attack Increase

Strength Stat
Stat Range Damage per Point Estimated Attack Gained
13 to 25 3.15 41
26 to 50 1.44 36
51 to 99 0.33 16
Skill Stat
Stat Range Damage per Point Estimated Attack Gained
9 to 25 1.12 19
26 to 50 0.56 14
51 to 99 0.12 6
Arcane Stat
Stat Range Damage per Point Estimated Attack Gained
9 to 25 1.06 18
26 to 50 0.56 14
51 to 99 0.12 6


Movesets & Videos


Regular Moveset
Move Damage Type & Modifier[1] Stamina Effect
R1 Combo blunt.jpgbolt_atk.jpg1.00x 23 A four move combo with attacks 3 and 4 repeating until stamina is depleted. The first attack is from right to left horizontally, followed by a left to right swipe. Both of these drift somewhat downward as well. The third attack is also right to left, but on a diagonal from over the right shoulder to the ground near the left foot. The following attack is a mirror image of this (left to right).
Quickstep R1 blunt.jpgbolt_atk.jpg0.92x 30 There is only one animation for all quickstep attacks with this weapon. As the hunter hops forward, the weapon is thrust forward.
Backstep R1 blunt.jpgbolt_atk.jpg0.98x 30 As the hunter hops forward, the Tonitrus is raised to the left side of the body and swiped horizontally to the right.
Rolling R1 blunt.jpgbolt_atk.jpg0.87x 30 The weapon is thrust forward, just like the quickstep attacks.
Dash R1 blunt.jpgbolt_atk.jpg1.08x 20 (+run) The weapon is lifted to the right side of the body about shoulder height and brought across to the left horizontally.
R2 Attack blunt.jpgbolt_atk.jpg1.23x 37 The hunter brings the mace behind at about hip height, before lifting over the head and right shoulder and diagonally bringing the weapon down near the left foot.striking the ground.
Charged blunt.jpgbolt_atk.jpg1.92x 55 The weapon is brought further back and up compared to the R2, before swiping horizontally from right to left.
Backstep R2 blunt.jpgbolt_atk.jpg1.23x 40 The weapon is lifted overhead. As the hunter steps forward, the weapon is brought straight down into the ground.
Dash R2 blunt.jpgbolt_atk.jpg1.18x 30 (+run) The attack uses the same animation as the backstep R2.
Leap blunt.jpgbolt_atk.jpg1.53x 50 The weapon is lifted over the right shoulder as the character leaps forward, and swung in a downward diagonal from right to left, striking the ground as the hunter lands.
Transform Attack blunt.jpgbolt_atk.jpg1.10x 40 (+x) The weapon has only one transformation attack animation. Tonitrus is lifted about face level, parallel to the ground pointing left and charged. The weapon is brought back to the right side and thrust forward.
Transformed Moveset
Move Damage Type & Modifier Stamina Effect
Transform N/A 0 Increases bolt damage for all attacks. There are no additional moves available from "transforming"

tonitrus1.jpg external image 11087943_1416625821984204_8393010818273036149_o.jpg

  1. ^ Tested in PvP with naked characters, BL 120 with maxed weapon

    • 02 Apr 2017 21:48  

      This thing absolutely tore through every single enemy in the game on my second playthrough. Absolute beast while transformed, easiest wetnurse fight of my life.

      • 17 Feb 2017 01:05  

        I'd suggest nourishing or bolt gems for this thing, but avoiding odd bolt gems. It appears that bonuses provided by +% gems are multiplied by the buff, whereas the flat bonuses provided by odd gems are added after all other damage, and are not multiplied by the buff. Also, avoid cursed gems with -durability drawbacks, which will ruin the Tonitrus after only a few buffed swings.

        • Damage Bug10 Aug 2016 20:22  

          The wiki mentions this bug twice, but it's a little unclear - when you are buffed AND at full health, the damage will be listed as much higher. This does not actually change the damage. The article notes at one point that the correct damage is the non-full-health value, but later goes on to say that the correct value is the full-health display. Does anyone know which one it is?

          • Definitely one of the most handy weapon in late games09 Aug 2016 06:33  

            A leveled Tonitrus is a real sexy tool against bosses in late game, like Rom, The One Reborn and Wet Nurse, for its well balanced speedy moveset and bolt damage. With its poor durability it might not be suitable for map walkthroughs but certainly worth considering for boss fights. Highly recommend for new and handicap players like myself:P

            • Buffing increases Wear?05 Jul 2016 08:50  

              So i was messing around with the tonitrus today, and it seems to me that hitting an enemy while using the L1 buff increases the rate of wear on the weapon. Can someone else test this? I hit an enemy twice, and durability was still 100. i then hit two enemies with 1 buffed strike and it Dropped to 96. Thoughts?

              • Viable For Arcane builds05 Jul 2016 08:50  

                just to clear it up for anyone who doesnt know but the arcane scaling seems to be hidden and is actually higher than D. <br/>+10 tonitrus AR 293 - with 40 arcane upon transforming the AR hits 537 <br/>O-O with no blood gems <br/>im assuming you can imagine what it hits if you invest in strength as well

                • No secondary mode05 Jul 2016 08:50  

                  An actual downside in my eyes is that it does not transform into a different weapon, unlike all other weapons, meaning limited move-set and less versatility. The damage is amazing though.

                  • Fire AND Bolt!05 Jul 2016 08:50  

                    I got a blood gem that adds (not UPs) fire damage, as well as UPping physical attack. Put that thing on the Tonitrus and now it does both (it animates fire, though). Best weapon to me. Similar to Quelaag's Furysword in Dark Souls in attack style.

                    • Phys Atk Vs Blunt05 Jul 2016 08:50  

                      So i have been wondering, how does raising the blunt attack compare to raising the phys atk, or both? in other words, is it better with this particular weapon to focus on gems that increase blunt, phys, or both?

                      • Lost Tonitrus Location05 Jul 2016 08:50  

                        So, I don't know if by pure luck this happened, but I found both a Lost Tonitrus and a Lost Beast Claw while playing in a Makeshift Altar Loran dungeon (Which I haven't even completed past the Lower Pthumeru Chalice dungeons). The conducter's name was Heisenberg and the glyph is fxx8phm9.

                        • R105 Jul 2016 08:50  

                          It might be worth adding that after the first two swings, the Tonitrus's swing pattern becomes more diagonal, and it seems to swing with more momentum as hinted by the increased swinging sound effects.

                          • Lore05 Jul 2016 08:50  

                            There may be some significance to this weapon lore wise as it, the tiny Tonitrus, and the Dark Beast are all found in the Yharr'Gul Unseen village. Perhaps Archibald had some connection with the school of Mensis.

                            • Tonitrus Buff05 Jul 2016 08:50  

                              The buff to the tonitrus increases in damage when at full health. I just tested it with no gems equipped....Without full health the buff is weaker.

                              • Durability05 Jul 2016 08:50  

                                I tested this and found that the durability of the weapon goes down one point every 4-5 hits when unbuffed, and 1-2 hits when buffed. So the extra damage does come at a price of an increased rate of erosion on the weapon.

                                • Scaling with strength and arcane05 Jul 2016 08:50  

                                  So it scales with both strength and arcane at the same time right? Unlike the Ludwig where it's strictly strength and skill or arcane by itself.. I am currently equipped with Ludwig and Hunter's axe.. Is it recommended to use Ludwig and Tonitrus.. If so what build would be recommended.. Should I start pumping some arcane for the Tonitrus?

                                  • Big problem05 Jul 2016 08:50  

                                    Anyone noticing that Tonitrus loses buff damage after you lose some health? At full HP I get 774, then when I lose even a little health, I get 554. What is going on here? Maybe a patch did this?

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