Ok, this question maybe is wierd but still is importent.
When You have only one Tainted Well the sytuation is easy - when a unit is corrupted deal 1 damage to it. So the Action is triggered it that moment.
But how it is when You have 3 Tainted Well copies in play? Does this mean I can deal 3 damage to a unit that becomes corrupted? I think not, becouse the action can only be triggered when a unit is becoming corrupted and only at this time.
So the question is can I trigger all Actions from each Tainted Well in the same time or just one?