It increases each individual Poison stack by +1.


  • Each Noxious Fumes
    turn is +1 poison to all enemies. Playing multiple Noxious Fumes will still only grant +1 poison. So a Noxious Fumes of 4 would only deal +5 poison per turn.
  • Each Bouncing Flask
    attack is +1 poison (+3 in total, or +4 in total when upgraded.)
  • Each Envenom
    strike is +1 poison (granting +2 poison each in total, effectively doubling Envenom). This is counted separately, so a non-upgraded Poison Stab with one Envenom active will inflict a total of 6 poison (3 base poison +1 Snecko, then 1 Envenom poison +1 Snecko).
  • When playing Catalyst
    , +1 poison is added AFTER the current poison is doubled/tripled. For example, if your enemy has 8 poison currently, and you play an upgraded catalyst, they'll have 25 poison.8*3+1.
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