Based on the text of the new support card previewed today (Tainted Well - "ACTION: When a Unit is corrupted, deal 1 damage to that unit."), would folks think that this works on a pre-existing Corrupted unit or one that was just this moment corrupted?
My gut says that it only works on units which were just this moment corrupted. To that extent is probably should have been worded, "ACTION: When a Unit BECOMES corrupted, deal 1 damage to that unit." But that version would only make sense if they meant it to only work on newly corrupted units. If not, the wording is fine enough.