fierce jungle
No, it's not the uber poison bug of yore, it's the opposite.
Poison ticks are always 1 damage, no matter the tier of the barrel. The initial damage from the shot is correct: 1, 2, or 3 damage; but the subsequent ticks are always 1 damage.
Related is the damage that Duncan takes from poison: his ticks are always 3, even with a bronze or silver barrel. His second phase actually takes 6 damage per tick, again: no matter what tier the barrel is.
Should be easy to reproduce.
untold jetty