Poison Calculator
Calculate how many turns until poison kills an enemy in Slay the Spire 2. Plan Catalyst timing, track Noxious Fumes and Envenom stacking.
Poison Sources
100
10
0
Lethal Summary
Lethal Turn
10
turns to kill
Total Poison Damage
100
over 10 turns
Best Catalyst Turn
—
Turn-by-Turn Breakdown
| Turn | Poison | Damage | HP Left | Notes |
|---|---|---|---|---|
| 1 | 10 | 10 | 90 | |
| 2 | 10 | 10 | 80 | |
| 3 | 10 | 10 | 70 | |
| 4 | 10 | 10 | 60 | |
| 5 | 10 | 10 | 50 | |
| 6 | 10 | 10 | 40 | |
| 7 | 10 | 10 | 30 | |
| 8 | 10 | 10 | 20 | |
| 9 | 10 | 10 | 10 | |
| 10 | 10 | 10 | 0 |
Poison deals damage at the start of the enemy's turn, before they act.
Noxious Fumes adds poison to ALL enemies at the start of your turn.
Catalyst multiplies current poison stacks — use it when poison is highest for maximum value.