I have a Fiend Slayer. (Follower. If you encounter a space with instructions to draw one or more Adventure Cards, you must draw one more card than required.)
And there is a Prophesy going on for 2 rounds. (Whenever any character encounters a space with instructions to draw 1 or more Adventure Cards, he must draw 1 more card than required.)
Then I step on "Draw 1 Card" space. Do I draw 2 or 3 cards?