u/BlightUponThisEarth

I was playing with someone who said that if they sacrificed with Viscera Seer, they could scry before Dina's triggered ability drew a card. I thought that activating Viscera seer would put it on the stack, and then the trigger of Dina would go on after. They said they got to pick the order, and if that is true, I want to know why it works like that here, but does not with cards like morbid opportunist.