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Self-damage is 
damage a hero deals to themselves through an ability, item or weapon. It normally cannot kill the user and bypasses barriers, except 
Rat King’s 
Royal Pestments.
All listed sources deal spirit or 
pure damage. 
Spirit Resist reduces spirit self-damage, and incoming 
damage amplification affects only the spirit kind. Incoming damage reduction affects both; outgoing damage amplification and reduction affect neither.
| Hero | Source | Damage |
Notes |
|---|---|---|---|
 Bebop |
 Sticky Bomb |
Spirit | Self-cast |
 Deadman Danny |
Weapon | Spirit | — |
| Deadman Danny |
 Chimera Mk1 |
Spirit | — |
| Deadman Danny |
 Close The Deal |
Spirit | Can trigger  Lightning Scroll on the user |
 Lady Geist |
 Essence Bomb |
Spirit | — |
| Lady Geist |
 Life Drain |
Spirit | Alt-cast |
| Lady Geist |
 Malice |
Spirit | — |
 Victor |
 Jumpstart |
Pure | Non-lethal; can trigger  Shocking Reanimation |
| Victor |
 Aura of Suffering |
Pure | Non-lethal; can trigger Shocking Reanimation |
| Any |  Blood Tribute |
Pure | — |
| Any |  Unstable Concoction |
Pure | Executes and ignores invulnerability |
Sources and editorial notes
Adapted from Deadlock Wiki: Self-Damage (revision 204882) by Deadlock Wiki contributors, checked 2026-11-01. Source text is available under CC BY-SA 4.0.