2020-04-17 : Although the Human is an attacking creature, it was never declared as an attacking creature. This means that abilities that trigger whenever a creature attacks won’t trigger when it enters the battlefield attacking.

2020-04-17 : Any effects that say that the Human can’t attack (such as that of Propaganda, or if you get a Human with defender) affect only the declaration of attackers. They won’t stop the Human you find from entering the battlefield attacking.

2020-04-17 : If more than one non-Human creature you control attacks, Winota’s ability triggers separately for each of them. For example, if three non-Human creatures attack, you won’t look at the top eighteen cards of your library at once; you’ll look at six, finish resolving the ability, and then repeat the process twice more as the other instances of the ability resolve.

2020-04-17 : You choose which player or planeswalker the Human is attacking. It doesn’t have to be attacking the same player or planeswalker that the non-Human creature is attacking.