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One Last Thing

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One Last Thing is a tier 5 skill in Claptrap's Boomtrap skill tree. It allows Claptrap's last bullet in the clip/magazine to deal bonus damage.


  • Bonus damage: Up to +80% per rank depending on magazine size
Level 1 2 3 4 5
Damage +80% +160% +240% +320%+400%
Level 6 7 8 9 10 11
Damage +480% +560% +640% +720%+800%+880%

Can be increased past level 5 by equipping a Sapper class mod.


  • One Last Thing applies to splash damage as well as bullet damage. On weapons that deal both splash and bullet damage, however, the splash damage bonus is applied on the second to last shot while the bullet damage bonus is applied on the left. This synergizes well with Torgue Ravager shotguns with a magazine size of 8, as the increased ammo consumption allows for every shot to gain a damage bonus.
  • The bonus damage is equal to 1 + (.8 - ((.08 \cdot (8 - \text{magazine size}))) \cdot \text{rank}).


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