Event # 230307266

Maybe i'm just wrong with this card and how it works..

I had a Herald's Horn on the battlefield, it will reveal the card and will put in my hand if this was of the creature type i chosed, but then in my draw step should i draw a card or not? Beacuse if it is of another creature type, or not a creature at all, i will draw the card that i see no? Sorry, english is not my first language..

1: Beginning of my upkeep, i look at the top card of my library
2: It is a creature card of the chosen type, i reveal it and put it into my hand, then i proceed to my draw step
3: Actual: In my draw step i draw no card
4: Expected: In my draw step i draw a card