Does this card:
1: check to see if any units are corupted and then deal 2 damage to them and 1 to everything else simultaneously.
or
2: deal 1 damage to everything. and then check if anything is corupted and deal 1 damage to those corupted units.
i always assumed 1: but now we have a player saying it works like 2: because of the period between the two sentences on the card. And yes he is trying to trigger the shrine to nurgle inbetween the two sentences timing.