Tupi Poison Arrow Frogs
Tupi Poison Arrow Frogs is an Exploration Age technology available through a Trading Post or Tambo on a Tupi settlement in Age of Empires III. It increases Archer damage and adds a poison effect to the Tupi Blackwood Archer’s ranged attack.

Research profile
- Research location
- Trading Post or Tambo on a Tupi settlement
- Research time
- 60 seconds
- Wood cost
- 150
- Coin cost
- 150
- Effect
- Archer damage +10%; Tupi Blackwood Archers' ranged attack inflicts poison damage; Poison damage +10%
Effect & research conditions
Research costs 150 Wood and 150 Coin and takes 60 seconds. Archer damage increases by 10%; Tupi Blackwood Archers gain poison damage on their ranged attack, and that poison damage increases by 10%. The effect is specific to the listed unit and Archer class, not a universal bonus to all military attacks.
Research condition
Exploration Age at a Trading Post or Tambo on a Tupi settlement; cost: 150 Wood and 150 Coin; research time: 60 seconds.
When to research
Research it when Archers and Tupi Blackwood Archers will be a substantial part of the army and can use the bonus over a long fight. The 60-second research time means it should be planned ahead; it does not answer an immediate attack. If those units are absent from the roster or the opponent counters them efficiently, use the resources on another option.
The effects apply to different parts of the roster
The general 10% Archer damage bonus and the Blackwood Archer poison effect are separate parts of the technology. The poison improvement is relevant only when the named unit is used, while the class bonus supports eligible Archers more broadly. Keep the Blackwood Archers protected so they can continue firing and make use of the damage over time.