I have The Gitrog Monster in play and cast Smallpox. If I am sacrificing The Gitrog Monster and then sacrificing a land, does Gitrog's ability trigger because my land hits the graveyard, or does Gitrog not see the land entering the graveyard because it was sacrificed first?
However, if you choose to discard a land card to Smallpox's second action, you discard BEFORE you sac a creature, so the Monster will trigger that way.
The Gitrog Monster and Smallpox